eslint-plugin-jsdoc
Advanced tools
JSDoc linting rules for ESLint.
check-alignmentcheck-examplescheck-indentationcheck-param-namescheck-syntaxcheck-tag-namescheck-typesimplements-on-classesmatch-descriptionnewline-after-descriptionno-typesno-undefined-typesrequire-description-complete-sentencerequire-descriptionrequire-examplerequire-hyphen-before-param-descriptionrequire-jsdocrequire-param-descriptionrequire-param-namerequire-param-typerequire-paramrequire-returns-checkrequire-returns-descriptionrequire-returns-typerequire-returnsvalid-typesThis table maps the rules between eslint-plugin-jsdoc and jscs-jsdoc.
Install ESLint either locally or globally.
npm install --save-dev eslint
If you have installed ESLint globally, you have to install JSDoc plugin globally too. Otherwise, install it locally.
npm install --save-dev eslint-plugin-jsdoc
Add plugins section and specify eslint-plugin-jsdoc as a plugin.
{
"plugins": [
"jsdoc"
]
}
Finally, enable all of the rules that you would like to use.
{
"rules": {
"jsdoc/check-alignment": 1, // Recommended
"jsdoc/check-examples": 1,
"jsdoc/check-indentation": 1,
"jsdoc/check-param-names": 1, // Recommended
"jsdoc/check-syntax": 1,
"jsdoc/check-tag-names": 1, // Recommended
"jsdoc/check-types": 1, // Recommended
"jsdoc/implements-on-classes": 1, // Recommended
"jsdoc/match-description": 1,
"jsdoc/newline-after-description": 1, // Recommended
"jsdoc/no-types": 1,
"jsdoc/no-undefined-types": 1, // Recommended
"jsdoc/require-description": 1,
"jsdoc/require-description-complete-sentence": 1,
"jsdoc/require-example": 1,
"jsdoc/require-hyphen-before-param-description": 1,
"jsdoc/require-jsdoc": 1, // Recommended
"jsdoc/require-param": 1, // Recommended
"jsdoc/require-param-description": 1, // Recommended
"jsdoc/require-param-name": 1, // Recommended
"jsdoc/require-param-type": 1, // Recommended
"jsdoc/require-returns": 1, // Recommended
"jsdoc/require-returns-check": 1, // Recommended
"jsdoc/require-returns-description": 1, // Recommended
"jsdoc/require-returns-type": 1, // Recommended
"jsdoc/valid-types": 1 // Recommended
}
}
Or you can simply use the following which enables the rules commented above as "recommended":
{
"extends": ["plugin:jsdoc/recommended"]
}
You can then selectively add to or override the recommended rules.
@private to disable rules for that comment blocksettings.jsdoc.ignorePrivate - Disables all rules for the comment block
on which a @private tag occurs. Defaults to false.Use settings.jsdoc.tagNamePreference to configure a preferred alias name for a JSDoc tag. The format of the configuration is: <primary tag name>: <preferred alias name>, e.g.
{
"rules": {},
"settings": {
"jsdoc": {
"tagNamePreference": {
"param": "arg",
"returns": "return"
}
}
}
}
One may also use an object with a message and replacement.
The following will report the message @extends is to be used over @augments as it is more evocative of classes than @augments upon encountering @augments.
{
"rules": {},
"settings": {
"jsdoc": {
"tagNamePreference": {
"augments": {
"message": "@extends is to be used over @augments as it is more evocative of classes than @augments",
"replacement": "extends"
}
}
}
}
}
If one wishes to reject a normally valid tag, e.g., @todo, one may set the tag to false:
{
"rules": {},
"settings": {
"jsdoc": {
"tagNamePreference": {
"todo": false
}
}
}
}
Or one may set the targeted tag to an object with a custom message, but without a replacement property:
{
"rules": {},
"settings": {
"jsdoc": {
"tagNamePreference": {
"todo": {
"message": "We expect immediate perfection, so don't leave to-dos in your code."
}
}
}
}
}
Note that the preferred tags indicated in the settings.jsdoc.tagNamePreference
map will be assumed to be defined by check-tag-names.
The defaults in eslint-plugin-jsdoc (for tags which offer
aliases) are as follows:
@abstract (over @virtual)@augments (over @extends)@class (over @constructor)@constant (over @const)@default (over @defaultvalue)@description (over @desc)@external (over @host)@file (over @fileoverview, @overview)@fires (over @emits)@function (over @func, @method)@member (over @var)@param (over @arg, @argument)@property (over @prop)@returns (over @return)@throws (over @exception)@yields (over @yield)This setting is utilized by the the rule for tag name checking
(check-tag-names) as well as in the @param and @require rules:
check-param-namescheck-tag-namesrequire-hyphen-before-param-descriptionrequire-descriptionrequire-paramrequire-param-descriptionrequire-param-namerequire-param-typerequire-returnsrequire-returns-checkrequire-returns-descriptionrequire-returns-type@override/@augments/@extends/@implements Without Accompanying @param/@description/@example/@returnsThe following settings allows the element(s) they reference to be omitted
on the JSDoc comment block of the function or that of its parent class
for any of the "require" rules (i.e., require-param, require-description,
require-example, or require-returns).
settings.jsdoc.overrideReplacesDocs (@override) - Defaults to truesettings.jsdoc.augmentsExtendsReplacesDocs (@augments or its alias @extends) - Defaults to false.settings.jsdoc.implementsReplacesDocs (@implements) - Defaults to falseThe format of the configuration is as follows:
{
"rules": {},
"settings": {
"jsdoc": {
"overrideReplacesDocs": true,
"augmentsExtendsReplacesDocs": true,
"implementsReplacesDocs": true
}
}
}
check-types and no-undefined-typessettings.jsdoc.preferredTypes An option map to indicate preferred
or forbidden types (if default types are indicated here, these will
have precedence over the default recommendations for check-types).
The keys of this map are the types to be replaced (or forbidden).
These keys may include:
*[] which we use to denote the parent (array)
types used in the syntax string[], number[], etc..<> (or .) to represent the format Array.<value>
or Object.<key, value><> to represent the format Array<value> or
Object<key, value>MyType[] which is always assumed to be an Array), e.g., Array., or
SpecialObject<>.If a bare pseudo-type is used, it will match all parent types of that form. If a pseudo-type prefixed with a type name is used, it will only match parent types of that form and type name.
The values can be:
false to forbid the typefix mode can replace); this can be one of the formats
of the keys described above. Note that the format will not be changed
unless you use a pseudo-type in the replacement (e.g.,
'Array.<>': 'MyArray' will change Array.<string> to MyArray.<string>,
preserving the dot; to get rid of the dot, you must use the pseudo-type:
'Array.<>': 'MyArray<>' which will change Array.<string> to
MyArray<string>). If you use a bare pseudo-type in the replacement,
e.g., 'MyArray.<>': '<>', the type will be converted to the format
of the pseudo-type without changing the type name, i.e., MyArray.<string>
will become MyArray<string> but Array.<string> will not be modified.message to provide a specific error message
when encountering the discouraged type and, if a type is to be preferred
in its place, the key replacement to indicate the type that should be
used in its place (and which fix mode can replace) or false if
forbidding the type. The message string will have the substrings with
special meaning, {{tagName}} and {{tagValue}}, replaced with their
corresponding value.Note that the preferred types indicated as targets in settings.jsdoc.preferredTypes
map will be assumed to be defined by no-undefined-types.
See the option of check-types, unifyParentAndChildTypeChecks, for
how the keys of preferredTypes may have <> or .<> (or just .)
appended and its bearing on whether types are checked as parents/children
only (e.g., to match Array if the type is Array vs. Array.<string>).
check-alignmentReports invalid alignment of JSDoc block asterisks.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | N/A |
The following patterns are considered problems:
/**
* @param {Number} foo
*/
function quux (foo) {
}
// Message: Expected JSDoc block to be aligned.
/**
* @param {Number} foo
*/
function quux (foo) {
}
// Message: Expected JSDoc block to be aligned.
/**
* @param {Number} foo
*/
function quux (foo) {
}
// Message: Expected JSDoc block to be aligned.
/**
* @param {Number} foo
*/
function quux (foo) {
}
// Message: Expected JSDoc block to be aligned.
/**
* @param {Number} foo
*/
function quux (foo) {
}
// Message: Expected JSDoc block to be aligned.
/**
* A jsdoc not attached to any node.
*/
// Message: Expected JSDoc block to be aligned.
class Foo {
/**
* Some method
* @param a
*/
quux(a) {}
}
// Message: Expected JSDoc block to be aligned.
The following patterns are not considered problems:
/**
* Desc
*
* @param {Number} foo
*/
function quux (foo) {
}
/**
* Desc
*
* @param {{
foo: Bar,
bar: Baz
* }} foo
*
*/
function quux (foo) {
}
/* <- JSDoc must start with 2 stars.
* So this is unchecked.
*/
function quux (foo) {}
check-examplesEnsures that (JavaScript) examples within JSDoc adhere to ESLint rules.
The options below all default to no-op/false except as noted.
captionRequiredJSDoc specs use of an optional <caption> element at the beginning of
@example.
The option captionRequired insists on a <caption> being present at
the beginning of any @example.
exampleCodeRegex and rejectExampleCodeRegexJSDoc does not specify a formal means for delimiting code blocks within
@example (it uses generic syntax highlighting techniques for its own
syntax highlighting). The following options determine whether a given
@example tag will have the check-examples checks applied to it:
exampleCodeRegex - Regex which whitelists lintable
examples. If a parenthetical group is used, the first one will be used,
so you may wish to use (?:...) groups where you do not wish the
first such group treated as one to include. If no parenthetical group
exists or matches, the whole matching expression will be used.
An example might be "^```(?:js|javascript)([\\s\\S]*)```$"
to only match explicitly fenced JavaScript blocks.rejectExampleCodeRegex - Regex blacklist which rejects
non-lintable examples (has priority over exampleCodeRegex). An example
might be "^`" to avoid linting fenced blocks which may indicate
a non-JavaScript language.If neither is in use, all examples will be matched. Note also that even if
captionRequired is not set, any initial <caption> will be stripped out
before doing the regex matching.
reportUnusedDisableDirectivesIf not set to false, reportUnusedDisableDirectives will report disabled
directives which are not used (and thus not needed). Defaults to true.
Corresponds to ESLint's --report-unused-disable-directives.
Inline ESLint config within @example JavaScript is allowed, though the
disabling of ESLint directives which are not needed by the resolved rules
will be reported as with the ESLint --report-unused-disable-directives
command.
allowInlineConfig, noDefaultExampleRules, matchingFileName, configFile, eslintrcForExamples, and baseConfig)The following options determine which individual ESLint rules will be
applied to the JavaScript found within the @example tags (as determined
to be applicable by the above regex options). They are ordered by
decreasing precedence:
allowInlineConfig - If not set to false, will allow
inline config within the @example to override other config. Defaults
to true.noDefaultExampleRules - Setting to true will disable the
default rules which are expected to be troublesome for most documentation
use. See the section below for the specific default rules.matchingFileName - Option for a file name (even non-existent) to trigger
specific rules defined in one's config; usable with ESLint .eslintrc.*
overrides -> files globs, to apply a desired subset of rules with
@example (besides allowing for rules specific to examples, this option
can be useful for enabling reuse of the same rules within @example as
with JavaScript Markdown lintable by
other plugins, e.g.,
if one sets matchingFileName to dummy.md so that @example rules will
follow one's Markdown rules). Note that this option may come at somewhat
of a performance penalty as the file's existence is checked by eslint.configFile - A config file. Corresponds to ESLint's -c.eslintrcForExamples - Defaults to true in adding rules
based on an .eslintrc.* file. Setting to false corresponds to
ESLint's --no-eslintrc.baseConfig - An object of rules with the same schema
as .eslintrc.* for defaultsnoDefaultExampleRules is Set to trueeol-last - Insisting that a newline "always" be at the end is less likely
to be desired in sample code as with the code file conventionno-console - Unlikely to have inadvertent temporary debugging within
examplesno-undef - Many variables in examples will be undefined.no-unused-vars - It is common to define variables for clarity without always
using them within examples.padded-blocks - It can generally look nicer to pad a little even if one's
code follows more stringency as far as block padding.import/no-unresolved - One wouldn't generally expect example paths to
resolve relative to the current JavaScript file as one would with real code.import/unambiguous - Snippets in examples are likely too short to always
include full import/export infonode/no-missing-import - See import/no-unresolvednode/no-missing-require - See import/no-unresolved| Context | ArrowFunctionExpression, ClassDeclaration, FunctionDeclaration, FunctionExpression |
| Tags | example |
| Options | See above |
The following patterns are considered problems:
/**
* @example alert('hello')
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"no-alert":2,"semi":["error","always"]}},"eslintrcForExamples":false}]
// Message: @example error (no-alert): Unexpected alert.
/**
* @example alert('hello')
*/
class quux {
}
// Options: [{"baseConfig":{"rules":{"no-alert":2,"semi":["error","always"]}},"eslintrcForExamples":false}]
// Message: @example error (no-alert): Unexpected alert.
/**
* @example ```js
alert('hello');
```
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"semi":["error","never"]}},"eslintrcForExamples":false,"exampleCodeRegex":"```js([\\s\\S]*)```"}]
// Message: @example error (semi): Extra semicolon.
/**
* @example
* ```js alert('hello'); ```
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"semi":["error","never"]}},"eslintrcForExamples":false,"exampleCodeRegex":"```js ([\\s\\S]*)```"}]
// Message: @example error (semi): Extra semicolon.
/**
* @example ```
* js alert('hello'); ```
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"semi":["error","never"]}},"eslintrcForExamples":false,"exampleCodeRegex":"```\njs ([\\s\\S]*)```"}]
// Message: @example error (semi): Extra semicolon.
/**
* @example <b>Not JavaScript</b>
*/
function quux () {
}
/**
* @example quux2();
*/
function quux2 () {
}
// Options: [{"baseConfig":{"rules":{"semi":["error","never"]}},"eslintrcForExamples":false,"rejectExampleCodeRegex":"^\\s*<.*>$"}]
// Message: @example error (semi): Extra semicolon.
/**
* @example
* quux(); // does something useful
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"no-undef":["error"]}},"eslintrcForExamples":false,"noDefaultExampleRules":true}]
// Message: @example error (no-undef): 'quux' is not defined.
/**
* @example <caption>Valid usage</caption>
* quux(); // does something useful
*
* @example
* quux('random unwanted arg'); // results in an error
*/
function quux () {
}
// Options: [{"captionRequired":true,"eslintrcForExamples":false}]
// Message: Caption is expected for examples.
/**
* @example quux();
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"indent":["error"]}},"eslintrcForExamples":false,"noDefaultExampleRules":false}]
// Message: @example error (indent): Expected indentation of 0 spaces but found 1.
/**
* @example test() // eslint-disable-line semi
*/
function quux () {}
// Options: [{"eslintrcForExamples":false,"noDefaultExampleRules":true,"reportUnusedDisableDirectives":true}]
// Message: @example error: Unused eslint-disable directive (no problems were reported from 'semi').
/**
* @example
test() // eslint-disable-line semi
*/
function quux () {}
// Options: [{"allowInlineConfig":false,"baseConfig":{"rules":{"semi":["error","always"]}},"eslintrcForExamples":false,"noDefaultExampleRules":true}]
// Message: @example error (semi): Missing semicolon.
/**
* @example const i = 5;
* quux2()
*/
function quux2 () {
}
// Options: [{"matchingFileName":"test/jsdocUtils.js"}]
// Message: @example warning (id-length): Identifier name 'i' is too short (< 2).
/**
* @example const i = 5;
* quux2()
*/
function quux2 () {
}
// Message: @example warning (id-length): Identifier name 'i' is too short (< 2).
/**
* @example const i = 5;
* quux2()
*/
function quux2 () {
}
// Options: [{"matchingFileName":"test/rules/data/dummy.js"}]
// Message: @example error (semi): Missing semicolon.
/**
* @example // begin
alert('hello')
// end
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"semi":["warn","always"]}},"eslintrcForExamples":false,"exampleCodeRegex":"// begin[\\s\\S]*// end","noDefaultExampleRules":true}]
// Message: @example warning (semi): Missing semicolon.
/**
*
*/
function f () {
}
// Settings: {"jsdoc":{"allowInlineConfig":true,"baseConfig":{},"captionRequired":false,"configFile":"configFile.js","eslintrcForExamples":true,"exampleCodeRegex":".*?","matchingFileName":"test.md","noDefaultExampleRules":false,"rejectExampleCodeRegex":"\\W*","reportUnusedDisableDirectives":true}}
// Message: `settings.jsdoc.captionRequired` has been removed, use options in the rule `check-examples` instead.
The following patterns are not considered problems:
/**
* @example ```js
alert('hello');
```
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"semi":["error","always"]}},"eslintrcForExamples":false,"exampleCodeRegex":"```js([\\s\\S]*)```"}]
/**
* @example
* // arbitrary example content
*/
function quux () {
}
// Options: [{"eslintrcForExamples":false}]
/**
* @example
* quux(); // does something useful
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"no-undef":["error"]}},"eslintrcForExamples":false,"noDefaultExampleRules":false}]
/**
* @example quux();
*/
function quux () {
}
// Options: [{"baseConfig":{"rules":{"indent":["error"]}},"eslintrcForExamples":false,"noDefaultExampleRules":false}]
/**
* @example <caption>Valid usage</caption>
* quux(); // does something useful
*
* @example <caption>Invalid usage</caption>
* quux('random unwanted arg'); // results in an error
*/
function quux () {
}
// Options: [{"captionRequired":true,"eslintrcForExamples":false}]
/**
* @example test() // eslint-disable-line semi
*/
function quux () {}
// Options: [{"eslintrcForExamples":false,"noDefaultExampleRules":true,"reportUnusedDisableDirectives":false}]
/**
* @example
test() // eslint-disable-line semi
*/
function quux () {}
// Options: [{"allowInlineConfig":true,"baseConfig":{"rules":{"semi":["error","always"]}},"eslintrcForExamples":false,"noDefaultExampleRules":true}]
check-indentationReports invalid padding inside JSDoc block.
| Context | everywhere |
| Tags | N/A |
The following patterns are considered problems:
/**
* foo
*
* @param bar
* baz
*/
function quux () {
}
// Message: There must be no indentation.
/**
* Foo
* bar
*/
class Moo {}
// Message: There must be no indentation.
The following patterns are not considered problems:
/**
* foo
*
* @param bar
* baz
*/
function quux () {
}
check-param-namesEnsures that parameter names in JSDoc match those in the function declaration.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | param |
The following patterns are considered problems:
/**
* @param Foo
*/
function quux (foo = 'FOO') {
}
// Message: Expected @param names to be "foo". Got "Foo".
/**
* @arg Foo
*/
function quux (foo = 'FOO') {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"arg"}}}
// Message: Expected @arg names to be "foo". Got "Foo".
/**
* @param Foo
*/
function quux (foo) {
}
// Message: Expected @param names to be "foo". Got "Foo".
/**
* @param Foo.Bar
*/
function quux (foo) {
}
// Message: @param path declaration ("Foo.Bar") appears before any real parameter.
/**
* @param foo
* @param Foo.Bar
*/
function quux (foo) {
}
// Message: @param path declaration ("Foo.Bar") root node name ("Foo") does not match previous real parameter name ("foo").
/**
* @param foo
* @param foo.bar
* @param bar
*/
function quux (bar, foo) {
}
// Message: Expected @param names to be "bar, foo". Got "foo, bar".
/**
* @param foo
* @param bar
*/
function quux (foo) {
}
// Message: @param "bar" does not match an existing function parameter.
/**
* @param foo
* @param foo
*/
function quux (foo) {
}
// Message: Duplicate @param "foo"
/**
* @param foo
* @param foo
*/
function quux (foo, bar) {
}
// Message: Duplicate @param "foo"
/**
* @param foo
* @param foo
*/
function quux (foo, foo) {
}
// Message: Duplicate @param "foo"
export class SomeClass {
/**
* @param prop
*/
constructor(private property: string) {}
}
// Message: Expected @param names to be "property". Got "prop".
/**
* @param foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":false}}}
// Message: Unexpected tag `@param`
The following patterns are not considered problems:
/**
*
*/
function quux (foo) {
}
/**
* @param foo
*/
function quux (foo) {
}
/**
* @param foo
* @param bar
*/
function quux (foo, bar) {
}
/**
* @param foo
* @param bar
*/
function quux (foo, bar, baz) {
}
/**
* @param foo
* @param foo.foo
* @param bar
*/
function quux (foo, bar) {
}
/**
* @param args
*/
function quux (...args) {
}
/**
* @param foo
*/
function quux ({a, b}) {
}
/**
* @param foo
*/
function quux ({a, b} = {}) {
}
/**
* @param foo
*/
function quux ([a, b] = []) {
}
/**
* Assign the project to a list of employees.
* @param {Object[]} employees - The employees who are responsible for the project.
* @param {string} employees[].name - The name of an employee.
* @param {string} employees[].department - The employee's department.
*/
function assign (employees) {
};
export class SomeClass {
/**
* @param property
*/
constructor(private property: string) {}
}
eslint-plugin-jsdoc does not validate names of parameters in function deconstruction, e.g.
/**
* @param foo
*/
function quux ({
a,
b
}) {
}
{a, b} is an ObjectPattern AST type and does not have a name. Therefore, the associated parameter in JSDoc block can have any name.
Likewise for the pattern [a, b] which is an ArrayPattern.
check-syntaxReports against Google Closure Compiler syntax.
| Context | everywhere |
| Tags | N/A |
The following patterns are considered problems:
/**
* @param {string=} foo
*/
function quux (foo) {
}
// Message: Syntax should not be Google Closure Compiler style.
The following patterns are not considered problems:
/**
* @param {string} [foo]
*/
function quux (foo) {
}
/**
*
*/
function quux (foo) {
}
check-tag-namesReports invalid block tag names.
Valid JSDoc 3 Block Tags are:
abstract
access
alias
async
augments
author
borrows
callback
class
classdesc
constant
constructs
copyright
default
deprecated
description
enum
event
example
exports
external
file
fires
function
generator
global
hideconstructor
ignore
implements
inheritdoc
inner
instance
interface
kind
lends
license
listens
member
memberof
memberof!
mixes
mixin
module
name
namespace
override
package
param
private
property
protected
public
readonly
requires
returns
see
since
static
summary
this
throws
todo
tutorial
type
typedef
variation
version
yields
Note that the tags indicated as replacements in settings.jsdoc.tagNamePreference will automatically be considered as valid.
definedTagsUse an array of definedTags strings to configure additional, allowed JSDoc tags.
The format is as follows:
{
"definedTags": ["define", "record"]
}
| Context | everywhere |
| Tags | N/A |
| Options | definedTags |
| Settings | tagNamePreference |
The following patterns are considered problems:
/** @typoo {string} */
let a;
// Message: Invalid JSDoc tag name "typoo".
/**
* @Param
*/
function quux () {
}
// Message: Invalid JSDoc tag name "Param".
/**
* @foo
*/
function quux () {
}
// Message: Invalid JSDoc tag name "foo".
/**
* @arg foo
*/
function quux (foo) {
}
// Message: Invalid JSDoc tag (preference). Replace "arg" JSDoc tag with "param".
/**
* @param foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"arg"}}}
// Message: Invalid JSDoc tag (preference). Replace "param" JSDoc tag with "arg".
/**
* @arg foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"arg":"somethingDifferent"}}}
// Message: Invalid JSDoc tag (preference). Replace "arg" JSDoc tag with "somethingDifferent".
/**
* @param foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"parameter"}}}
// Message: Invalid JSDoc tag (preference). Replace "param" JSDoc tag with "parameter".
/**
* @bar foo
*/
function quux (foo) {
}
// Message: Invalid JSDoc tag name "bar".
/**
* @baz @bar foo
*/
function quux (foo) {
}
// Options: [{"definedTags":["bar"]}]
// Message: Invalid JSDoc tag name "baz".
/**
* @bar
* @baz
*/
function quux (foo) {
}
// Options: [{"definedTags":["bar"]}]
// Message: Invalid JSDoc tag name "baz".
/**
* @todo
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"todo":false}}}
// Message: Blacklisted tag found (`@todo`)
/**
* @todo
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"todo":{"message":"Please resolve to-dos or add to the tracker"}}}}
// Message: Please resolve to-dos or add to the tracker
/**
* @todo
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"todo":{"message":"Please use x-todo instead of todo","replacement":"x-todo"}}}}
// Message: Please use x-todo instead of todo
/**
* @todo
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"todo":{"message":"Please use x-todo instead of todo","replacement":"x-todo"}}}}
// Message: Please use x-todo instead of todo
/**
* @todo
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"todo":55}}}
// Message: Invalid `settings.jsdoc.tagNamePreference`. Values must be falsy, a string, or an object.
The following patterns are not considered problems:
/**
* @param foo
*/
function quux (foo) {
}
/**
* @memberof! foo
*/
function quux (foo) {
}
/**
* @arg foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"arg"}}}
/**
* @bar foo
*/
function quux (foo) {
}
// Options: [{"definedTags":["bar"]}]
/**
* @baz @bar foo
*/
function quux (foo) {
}
// Options: [{"definedTags":["baz","bar"]}]
/**
* @baz @bar foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"baz","returns":{"message":"Prefer `bar`","replacement":"bar"},"todo":false}}}
/**
* @abstract
* @access
* @alias
* @augments
* @author
* @borrows
* @callback
* @class
* @classdesc
* @constant
* @constructs
* @copyright
* @default
* @deprecated
* @description
* @enum
* @event
* @example
* @exports
* @external
* @file
* @fires
* @function
* @global
* @ignore
* @implements
* @inheritdoc
* @inner
* @instance
* @interface
* @kind
* @lends
* @license
* @listens
* @member
* @memberof
* @memberof!
* @mixes
* @mixin
* @module
* @name
* @namespace
* @override
* @param
* @private
* @property
* @protected
* @public
* @readonly
* @requires
* @returns
* @see
* @since
* @static
* @summary
* @this
* @throws
* @todo
* @tutorial
* @type
* @typedef
* @variation
* @version
*/
function quux (foo) {}
/**
*
*/
function quux (foo) {
}
/**
* @todo
*/
function quux () {
}
check-typesReports invalid types.
By default, ensures that the casing of native types is the same as in this list:
undefined
null
boolean
number
string
object
Array
Function
Date
RegExp
check-types allows one option:
noDefaults to insist that only the supplied option type
map is to be used, and that the default preferences (such as "string"
over "String") will not be enforced. The option's default is false.unifyParentAndChildTypeChecks which will treat
settings.jsdoc.preferredTypes keys such as SomeType as matching
not only child types such as an unadorned SomeType but also
SomeType<aChildType>, SomeType.<aChildType>, or if SomeType is
Array (or []), it will match aChildType[]. If this is false or
unset, the former format will only apply to types which are not parent
types/unions whereas the latter formats will only apply for parent
types/unions. The special types [], .<> (or .), and <>
act only as parent types (and will not match a bare child type such as
Array even when unified, though, as mentioned, Array will match
say string[] or Array.<string> when unified). The special type
* is only a child type. Note that there is no detection of parent
and child type together, e.g., you cannot specify preferences for
string[] specifically as distinct from say number[], but you can
target both with [] or the child types number or string.See also the documentation on settings.jsdoc.preferredTypes which impacts
the behavior of check-types.
Why are boolean, number and string exempt from starting with a capital letter? Let's take string as an example. In Javascript, everything is an object. The string Object has prototypes for string functions such as .toUpperCase().
Fortunately we don't have to write new String() everywhere in our code. Javascript will automatically wrap string primitives into string Objects when we're applying a string function to a string primitive. This way the memory footprint is a tiny little bit smaller, and the GC has less work to do.
So in a sense, there two types of strings in Javascript; {string} literals, also called primitives and {String} Objects. We use the primitives because it's easier to write and uses less memory. {String} and {string} are technically both valid, but they are not the same.
new String('lard') // String {0: "l", 1: "a", 2: "r", 3: "d", length: 4}
'lard' // "lard"
new String('lard') === 'lard' // false
To make things more confusing, there are also object literals and object Objects. But object literals are still static Objects and object Objects are instantiated Objects. So an object primitive is still an object Object.
However, Object.create(null) objects are not instanceof Object, however, so
in the case of this Object we lower-case to indicate possible support for
these objects.
Basically, for primitives, we want to define the type as a primitive, because that's what we use in 99.9% of cases. For everything else, we use the type rather than the primitive. Otherwise it would all just be {object}.
In short: It's not about consistency, rather about the 99.9% use case. (And some functions might not even support the objects if they are checking for identity.)
| type name | typeof | check-types | testcase |
|---|---|---|---|
| Array | object | Array | ([]) instanceof Array -> true |
| Function | function | function | (function f () {}) instanceof Function -> true |
| Date | object | Date | (new Date()) instanceof Date -> true |
| RegExp | object | RegExp | (new RegExp(/.+/)) instanceof RegExp -> true |
| Object | object | object | ({}) instanceof Object -> true but Object.create(null) instanceof Object -> false |
| Boolean | boolean | boolean | (true) instanceof Boolean -> false |
| Number | number | number | (41) instanceof Number -> false |
| String | string | string | ("test") instanceof String -> false |
| Context | everywhere |
| Tags | class, constant, enum, implements, member, module, namespace, param, property, returns, throws, type, typedef, yields |
| Aliases | constructor, const, var, arg, argument, prop, return, exception |
| Closure-only | package, private, protected, public, static |
| Options | noDefaults, unifyParentAndChildTypeChecks |
| Settings | preferredTypes |
The following patterns are considered problems:
/**
* @param {abc} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":100}}}
// Message: Invalid `settings.jsdoc.preferredTypes`. Values must be falsy, a string, or an object.
/**
* @param {Number} foo
*/
function quux (foo) {
}
// Message: Invalid JSDoc @param "foo" type "Number"; prefer: "number".
/**
* @arg {Number} foo
*/
function quux (foo) {
}
// Message: Invalid JSDoc @arg "foo" type "Number"; prefer: "number".
/**
* @returns {Number} foo
* @throws {Number} foo
*/
function quux () {
}
// Message: Invalid JSDoc @returns type "Number"; prefer: "number".
/**
* @param {(Number|string|Boolean)=} foo
*/
function quux (foo, bar, baz) {
}
// Message: Invalid JSDoc @param "foo" type "Number"; prefer: "number".
/**
* @param {Array.<Number|String>} foo
*/
function quux (foo, bar, baz) {
}
// Message: Invalid JSDoc @param "foo" type "Number"; prefer: "number".
/**
* @param {(Number|String)[]} foo
*/
function quux (foo, bar, baz) {
}
// Message: Invalid JSDoc @param "foo" type "Number"; prefer: "number".
/**
* @param {abc} foo
*/
function qux(foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":"Abc","string":"Str"}}}
// Message: Invalid JSDoc @param "foo" type "abc"; prefer: "Abc".
/**
* @param {abc} foo
*/
function qux(foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":{"replacement":"Abc"},"string":"Str"}}}
// Message: Invalid JSDoc @param "foo" type "abc"; prefer: "Abc".
/**
* @param {abc} foo
*/
function qux(foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":{"message":"Messed up JSDoc @{{tagName}}{{tagValue}} type \"abc\"; prefer: \"Abc\".","replacement":"Abc"},"string":"Str"}}}
// Message: Messed up JSDoc @param "foo" type "abc"; prefer: "Abc".
/**
* @param {abc} foo
* @param {cde} bar
* @param {object} baz
*/
function qux(foo, bar, baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":{"message":"Messed up JSDoc @{{tagName}}{{tagValue}} type \"abc\"; prefer: \"Abc\".","replacement":"Abc"},"cde":{"message":"More messed up JSDoc @{{tagName}}{{tagValue}} type \"cde\"; prefer: \"Cde\".","replacement":"Cde"},"object":"Object"}}}
// Message: Messed up JSDoc @param "foo" type "abc"; prefer: "Abc".
/**
* @param {abc} foo
*/
function qux(foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":{"message":"Messed up JSDoc @{{tagName}}{{tagValue}} type \"abc\".","replacement":false},"string":"Str"}}}
// Message: Messed up JSDoc @param "foo" type "abc".
/**
* @param {abc} foo
*/
function qux(foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":{"message":"Messed up JSDoc @{{tagName}}{{tagValue}} type \"abc\"."},"string":"Str"}}}
// Message: Messed up JSDoc @param "foo" type "abc".
/**
* @param {abc} foo
* @param {Number} bar
*/
function qux(foo, bar) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":"Abc","string":"Str"}}}
// Options: [{"noDefaults":true}]
// Message: Invalid JSDoc @param "foo" type "abc"; prefer: "Abc".
/**
* @param {abc} foo
* @param {Number} bar
*/
function qux(foo, bar) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":"Abc","string":"Str"}}}
// Message: Invalid JSDoc @param "foo" type "abc"; prefer: "Abc".
/**
* @param {abc} foo
*/
function qux(foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":false,"string":"Str"}}}
// Message: Invalid JSDoc @param "foo" type "abc".
/**
* @param {abc} foo
*/
function qux(foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":false}}}
// Message: Invalid JSDoc @param "foo" type "abc".
/**
* @param {*} baz
*/
function qux(baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"*":false,"abc":"Abc","string":"Str"}}}
// Message: Invalid JSDoc @param "baz" type "*".
/**
* @param {*} baz
*/
function qux(baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"*":"aaa","abc":"Abc","string":"Str"}}}
// Message: Invalid JSDoc @param "baz" type "*"; prefer: "aaa".
/**
* @param {abc} foo
* @param {Number} bar
*/
function qux(foo, bar) {
}
// Settings: {"jsdoc":{"preferredTypes":{"abc":"Abc","string":"Str"}}}
// Message: Invalid JSDoc @param "foo" type "abc"; prefer: "Abc".
/**
* @param {Array} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array":"GenericArray"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "GenericArray".
/**
* @param {Array} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array":"GenericArray","Array.<>":"GenericArray"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "GenericArray".
/**
* @param {Array.<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array.<>":"GenericArray"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "GenericArray".
/**
* @param {Array<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array<>":"GenericArray"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "GenericArray".
/**
* @param {string[]} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"[]":"SpecialTypeArray"}}}
// Message: Invalid JSDoc @param "foo" type "[]"; prefer: "SpecialTypeArray".
/**
* @param {string[]} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"[]":"SpecialTypeArray"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "[]"; prefer: "SpecialTypeArray".
/**
* @param {string[]} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array":"SpecialTypeArray"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "SpecialTypeArray".
/**
* @param {object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject","object.<>":"GenericObject"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject","object<>":"GenericObject"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object.<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object.<>":"GenericObject"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object<>":"GenericObject"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object.<string, number>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object.<>":"GenericObject"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object<string, number>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object<>":"GenericObject"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object.<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":false}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "object".
/**
* @param {object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":false}}}
// Message: Invalid JSDoc @param "foo" type "object".
/**
* @param {object.<string, number>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
* @param {object<string, number>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "GenericObject".
/**
*
* @param {string[][]} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"[]":"Array."}}}
// Message: Invalid JSDoc @param "foo" type "[]"; prefer: "Array.".
/**
*
* @param {string[][]} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"[]":"Array.<>"}}}
// Message: Invalid JSDoc @param "foo" type "[]"; prefer: "Array.<>".
/**
*
* @param {string[][]} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"[]":"Array<>"}}}
// Message: Invalid JSDoc @param "foo" type "[]"; prefer: "Array<>".
/**
*
* @param {object.<string, object.<string, string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object.":"Object"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "Object".
/**
*
* @param {object.<string, object.<string, string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object.":"Object<>"}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "Object<>".
/**
*
* @param {object<string, object<string, string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object<>":"Object."}}}
// Message: Invalid JSDoc @param "foo" type "object"; prefer: "Object.".
/**
*
* @param {Array.<Array.<string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array.":"[]"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "[]".
/**
*
* @param {Array.<Array.<string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array.":"Array<>"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "Array<>".
/**
*
* @param {Array.<Array.<string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array.":"<>"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "<>".
/**
*
* @param {Array.<MyArray.<string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array.":"<>"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "<>".
/**
*
* @param {Array.<MyArray.<string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"MyArray.":"<>"}}}
// Message: Invalid JSDoc @param "foo" type "MyArray"; prefer: "<>".
/**
*
* @param {Array<Array<string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"<>":"Array."}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "Array.".
/**
*
* @param {Array<Array<string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array":"Array."}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "Array.".
/**
*
* @param {Array<Array<string>>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"<>":"[]"}}}
// Message: Invalid JSDoc @param "foo" type "Array"; prefer: "[]".
/** @typedef {String} foo */
// Message: Invalid JSDoc @typedef "foo" type "String"; prefer: "string".
The following patterns are not considered problems:
/**
* @param {number} foo
* @param {Bar} bar
* @param {*} baz
*/
function quux (foo, bar, baz) {
}
/**
* @arg {number} foo
* @arg {Bar} bar
* @arg {*} baz
*/
function quux (foo, bar, baz) {
}
/**
* @param {(number|string|boolean)=} foo
*/
function quux (foo, bar, baz) {
}
/**
* @param {typeof bar} foo
*/
function qux(foo) {
}
/**
* @param {import('./foo').bar.baz} foo
*/
function qux(foo) {
}
/**
* @param {(x: number, y: string) => string} foo
*/
function qux(foo) {
}
/**
* @param {() => string} foo
*/
function qux(foo) {
}
/**
* @returns {Number} foo
* @throws {Number} foo
*/
function quux () {
}
// Options: [{"noDefaults":true}]
/**
* @param {Object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"Object"}}}
/**
* @param {Array} foo
*/
function quux (foo) {
}
/**
* @param {Array.<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array":"GenericArray"}}}
/**
* @param {Array<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array":"GenericArray"}}}
/**
* @param {string[]} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array":"SpecialTypeArray","Array.<>":"SpecialTypeArray","Array<>":"SpecialTypeArray"}}}
/**
* @param {string[]} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array.<>":"SpecialTypeArray","Array<>":"SpecialTypeArray"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
/**
* @param {Array} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"[]":"SpecialTypeArray"}}}
/**
* @param {Array} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"[]":"SpecialTypeArray"}}}
// Options: [{"unifyParentAndChildTypeChecks":true}]
/**
* @param {Array} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array.<>":"GenericArray"}}}
/**
* @param {Array} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"Array<>":"GenericArray"}}}
/**
* @param {object} foo
*/
function quux (foo) {
}
/**
* @param {object.<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
/**
* @param {object<string>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
/**
* @param {object.<string, number>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
/**
* @param {object<string, number>} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object":"GenericObject"}}}
/**
* @param {object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object.<>":"GenericObject"}}}
/**
* @param {object} foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"preferredTypes":{"object<>":"GenericObject"}}}
/**
* @param {Number<} Ignore the error as not a validating rule
*/
function quux (foo) {
}
implements-on-classesReports an issue with any non-constructor function using @implements.
Constructor functions, whether marked with @class, @constructs, or being
an ES6 class constructor, will not be flagged.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | implements (prevented) |
The following patterns are considered problems:
/**
* @implements {SomeClass}
*/
function quux () {
}
// Message: @implements used on a non-constructor function
The following patterns are not considered problems:
/**
* @implements {SomeClass}
* @class
*/
function quux () {
}
/**
* @implements {SomeClass}
* @constructor
*/
function quux () {
}
/**
*
*/
class quux {
/**
* @implements {SomeClass}
*/
constructor () {
}
}
/**
*
*/
const quux = class {
/**
* @implements {SomeClass}
*/
constructor () {
}
}
/**
*
*/
function quux () {
}
match-descriptionEnforces a regular expression pattern on descriptions.
The default is this basic expression to match English sentences (Support for Unicode upper case may be added in a future version when it can be handled by our supported Node versions):
^([A-Z]|[`\\d_])[\\s\\S]*[.?!`]$
matchDescriptionYou can supply your own expression to override the default, passing a
matchDescription string on the options object.
{
'jsdoc/match-description': ['error', {matchDescription: '[A-Z].*\\.'}]
}
As with the default, the supplied regular expression will be applied with the
Unicode ("u") flag and is not case-insensitive.
tagsIf you want different regular expressions to apply to tags, you may use
the tags option object:
{
'jsdoc/match-description': ['error', {tags: {
param: '\\- [A-Z].*\\.',
returns: '[A-Z].*\\.'
}}]
}
In place of a string, you can also add true to indicate that a particular
tag should be linted with the matchDescription value (or the default).
{
'jsdoc/match-description': ['error', {tags: {
param: true,
returns: true
}}]
}
The tags @param/@arg/@argument will be properly parsed to ensure that
the matched "description" text includes only the text after the name.
All other tags will treat the text following the tag name, a space, and
an optional curly-bracketed type expression (and another space) as part of
its "description" (e.g., for @returns {someType} some description, the
description is some description while for @some-tag xyz, the description
is xyz).
mainDescriptionIf you wish to override the main function description without changing the
default match-description, you may use mainDescription:
{
'jsdoc/match-description': ['error', {
mainDescription: '[A-Z].*\\.',
tags: {
param: true,
returns: true
}
}]
}
There is no need to add mainDescription: true, as by default, the main
function (and only the main function) is linted, though you may disable checking
it by setting it to false.
contextsSet this to an array of strings representing the AST context
where you wish the rule to be applied (e.g., ClassDeclaration for ES6 classes).
Overrides the default contexts (see below).
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression; others when contexts option enabled |
| Tags | N/A by default but see tags options |
| Settings | |
| Options | contexts, tags (allows for 'param', 'arg', 'argument', 'description', 'desc', and any added to tags option, e.g., 'returns', 'return'), mainDescription, matchDescription |
The following patterns are considered problems:
/**
* foo.
*/
const q = class {
}
// Options: [{"contexts":["ClassExpression"]}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* foo.
*/
const q = {
};
// Options: [{"contexts":["ObjectExpression"]}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* foo.
*/
function quux () {
}
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo)
*/
function quux () {
}
// Message: JSDoc description does not satisfy the regex pattern.
/**
* тест.
*/
function quux () {
}
// Options: [{"matchDescription":"[А-Я][А-я]+\\."}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Abc.
*/
function quux () {
}
// Options: [{"mainDescription":"[А-Я][А-я]+\\.","tags":{"param":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo
*/
function quux () {
}
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo.
*
* @param foo foo.
*/
function quux (foo) {
}
// Options: [{"tags":{"param":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo.
*
* @summary foo.
*/
function quux () {
}
// Options: [{"tags":{"summary":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo.
*
* @author
*/
function quux () {
}
// Options: [{"tags":{"author":".+"}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo.
*
* @x-tag
*/
function quux () {
}
// Options: [{"tags":{"x-tag":".+"}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo.
*
* @description foo foo.
*/
function quux (foo) {
}
// Options: [{"tags":{"description":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo
*
* @param foo foo.
*/
function quux (foo) {
}
// Options: [{"mainDescription":"^[a-zA-Z]*$","tags":{"param":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo
*
* @param foo foo.
*/
function quux (foo) {
}
// Options: [{"mainDescription":false,"tags":{"param":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo.
*
* @param foo bar
*/
function quux (foo) {
}
// Options: [{"tags":{"param":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* {@see Foo.bar} buz
*/
function quux (foo) {
}
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo.
*
* @returns {number} foo
*/
function quux (foo) {
}
// Options: [{"tags":{"returns":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Foo.
*
* @returns foo.
*/
function quux (foo) {
}
// Options: [{"tags":{"returns":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* lorem ipsum dolor sit amet, consectetur adipiscing elit. pellentesque elit diam,
* iaculis eu dignissim sed, ultrices sed nisi. nulla at ligula auctor, consectetur neque sed,
* tincidunt nibh. vivamus sit amet vulputate ligula. vivamus interdum elementum nisl,
* vitae rutrum tortor semper ut. morbi porta ante vitae dictum fermentum.
* proin ut nulla at quam convallis gravida in id elit. sed dolor mauris, blandit quis ante at,
* consequat auctor magna. duis pharetra purus in porttitor mollis.
*/
function longDescription (foo) {
}
// Message: JSDoc description does not satisfy the regex pattern.
/**
* @arg {number} foo - Foo
*/
function quux (foo) {
}
// Options: [{"tags":{"arg":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* @argument {number} foo - Foo
*/
function quux (foo) {
}
// Options: [{"tags":{"argument":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* @return {number} foo
*/
function quux (foo) {
}
// Options: [{"tags":{"return":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* Returns bar.
*
* @return {number} bar
*/
function quux (foo) {
}
// Options: [{"tags":{"return":true}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* @param notRet
* @returns Тест.
*/
function quux () {
}
// Options: [{"tags":{"param":"[А-Я][А-я]+\\."}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* @description notRet
* @returns Тест.
*/
function quux () {
}
// Options: [{"tags":{"description":"[А-Я][А-я]+\\."}}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* foo.
*/
class quux {
}
// Options: [{"contexts":["ClassDeclaration"]}]
// Message: JSDoc description does not satisfy the regex pattern.
class MyClass {
/**
* Abc
*/
myClassField = 1
}
// Options: [{"contexts":["ClassProperty"]}]
// Message: JSDoc description does not satisfy the regex pattern.
/**
* foo.
*/
interface quux {
}
// Options: [{"contexts":["TSInterfaceDeclaration"]}]
// Message: JSDoc description does not satisfy the regex pattern.
const myObject = {
/**
* Bad description
*/
myProp: true
};
// Options: [{"contexts":["Property"]}]
// Message: JSDoc description does not satisfy the regex pattern.
The following patterns are not considered problems:
/**
* @param foo - Foo.
*/
function quux () {
}
// Options: [{"tags":{"param":true}}]
/**
* Foo.
*/
function quux () {
}
/**
* Foo.
* Bar.
*/
function quux () {
}
/**
* Foo.
*
* Bar.
*/
function quux () {
}
/**
* Тест.
*/
function quux () {
}
// Options: [{"matchDescription":"[А-Я][А-я]+\\."}]
/**
* @param notRet
* @returns Тест.
*/
function quux () {
}
// Options: [{"tags":{"returns":"[А-Я][А-я]+\\."}}]
/**
* @param notRet
* @description Тест.
*/
function quux () {
}
// Options: [{"tags":{"description":"[А-Я][А-я]+\\."}}]
/**
* Foo
* bar.
*/
function quux () {
}
/**
* @returns Foo bar.
*/
function quux () {
}
// Options: [{"tags":{"returns":true}}]
/**
* @returns {type1} Foo bar.
*/
function quux () {
}
// Options: [{"tags":{"returns":true}}]
/**
* @description Foo bar.
*/
function quux () {
}
// Options: [{"tags":{"description":true}}]
/**
* Foo. {@see Math.sin}.
*/
function quux () {
}
/**
* Foo {@see Math.sin} bar.
*/
function quux () {
}
/**
* Foo?
*
* Bar!
*
* Baz:
* 1. Foo.
* 2. Bar.
*/
function quux () {
}
/**
* Hello:
* World.
*/
function quux () {
}
/**
* Hello: world.
*/
function quux () {
}
/**
* Foo
* Bar.
*/
function quux () {
}
/**
* Foo.
*
* foo.
*/
function quux () {
}
/**
* foo.
*/
function quux () {
}
// Options: [{"mainDescription":false}]
/**
* foo.
*/
class quux {
}
/**
* foo.
*/
class quux {
}
// Options: [{"mainDescription":true}]
class MyClass {
/**
* Abc.
*/
myClassField = 1
}
// Options: [{"contexts":["ClassProperty"]}]
/**
* Foo.
*/
interface quux {
}
// Options: [{"contexts":["TSInterfaceDeclaration"]}]
const myObject = {
/**
* Bad description
*/
myProp: true
};
// Options: [{"contexts":[]}]
/**
* foo.
*/
const q = class {
}
// Options: [{"contexts":[]}]
/**
* foo.
*/
const q = {
};
// Options: [{"contexts":[]}]
/**
* @description foo.
*/
function quux () {
}
// Options: [{"tags":{"param":true}}]
/**
* Foo.
*
* @summary Foo.
*/
function quux () {
}
// Options: [{"tags":{"summary":true}}]
/**
* Foo.
*
* @author Somebody
*/
function quux () {
}
// Options: [{"tags":{"author":".+"}}]
/**
* Foo.
*
* @x-tag something
*/
function quux () {
}
// Options: [{"tags":{"x-tag":".+"}}]
newline-after-descriptionEnforces a consistent padding of the block description.
This rule allows one optional string argument. If it is "always" then a problem is raised when there is a newline after the description. If it is "never" then a problem is raised when there is no newline after the description. The default value is "always".
| Context | everywhere |
| Options | (a string matching `"always" |
| Tags | N/A |
The following patterns are considered problems:
/**
* Foo.
*
* Foo.
* @foo
*/
function quux () {
}
// Options: ["always"]
// Message: There must be a newline after the description of the JSDoc block.
/**
* Foo.
*
* Foo.
* @foo
*/
function quux () {
}
// Message: There must be a newline after the description of the JSDoc block.
/**
* Bar.
*
* Bar.
*
* @bar
*/
function quux () {
}
// Options: ["never"]
// Message: There must be no newline after the description of the JSDoc block.
The following patterns are not considered problems:
/**
* Foo.
*/
function quux () {
}
// Options: ["always"]
/**
* Bar.
*/
function quux () {
}
// Options: ["never"]
/**
* Foo.
*
* @foo
*/
function quux () {
}
// Options: ["always"]
/**
* Bar.
* @bar
*/
function quux () {
}
// Options: ["never"]
no-typesThis rule reports types being used on @param or @returns.
The rule is intended to prevent the indication of types on tags where the type information would be redundant with TypeScript.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | param, returns |
| Aliases | arg, argument, return |
The following patterns are considered problems:
/**
* @param {number} foo
*/
function quux (foo) {
}
// Message: Types are not permitted on @param.
/**
* @returns {number}
*/
function quux () {
}
// Message: Types are not permitted on @returns.
The following patterns are not considered problems:
/**
* @param foo
*/
function quux (foo) {
}
no-undefined-typesChecks that types in jsdoc comments are defined. This can be used to check unimported types.
When enabling this rule, types in jsdoc comments will resolve as used
variables, i.e. will not be marked as unused by no-unused-vars.
In addition to considering globals found in code (or in ESLint-indicated
globals) as defined, the following tags will also be checked for
name(path) definitions to also serve as a potential "type" for checking
the tag types in the table below:
@callback, @class (or @constructor), @constant (or @const), @event, @external (or @host), @function (or @func or @method), @interface, @member (or @var), @mixin, @name, @namespace, @template (for Closure/TypeScript), @typedef.
The following types are always considered defined.
null, undefined, string, boolean, object, functionnumber, NaN, Infinityany, *Array, Object, RegExp, Date, FunctionNote that preferred types indicated within settings.jsdoc.preferredTypes will
also be assumed to be defined.
An option object may have the following key:
definedTypes - This array can be populated to indicate other types which
are automatically considered as defined (in addition to globals, etc.).
Defaults to an empty array.| Context | everywhere |
| Tags | class, constant, enum, implements, member, module, namespace, param, property, returns, throws, type, typedef, yields |
| Aliases | constructor, const, var, arg, argument, prop, return, exception, yield |
| Closure-only | package, private, protected, public, static |
| Options | definedTypes |
| Settings | preferredTypes |
The following patterns are considered problems:
/**
* @param {HerType} baz - Foo.
*/
function quux(foo, bar, baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"HerType":1000}}}
// Message: Invalid `settings.jsdoc.preferredTypes`. Values must be falsy, a string, or an object.
/**
* @param {HerType} baz - Foo.
*/
function quux(foo, bar, baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"HerType":false}}}
// Message: The type 'HerType' is undefined.
/**
* @param {strnig} foo - Bar.
*/
function quux(foo) {
}
// Message: The type 'strnig' is undefined.
/**
* @param {MyType} foo - Bar.
* @param {HisType} bar - Foo.
*/
function quux(foo, bar) {
}
// Options: [{"definedTypes":["MyType"]}]
// Message: The type 'HisType' is undefined.
/**
* @param {MyType} foo - Bar.
* @param {HisType} bar - Foo.
* @param {HerType} baz - Foo.
*/
function quux(foo, bar, baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"hertype":{"replacement":"HerType"}}}}
// Options: [{"definedTypes":["MyType"]}]
// Message: The type 'HisType' is undefined.
/**
* @param {MyType} foo - Bar.
* @param {HisType} bar - Foo.
* @param {HerType} baz - Foo.
*/
function quux(foo, bar, baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"hertype":{"replacement":false},"histype":"HisType"}}}
// Options: [{"definedTypes":["MyType"]}]
// Message: The type 'HerType' is undefined.
/**
* @template TEMPLATE_TYPE
* @param {WRONG_TEMPLATE_TYPE} bar
*/
function foo (bar) {
};
// Message: The type 'WRONG_TEMPLATE_TYPE' is undefined.
class Foo {
/**
* @return {TEMPLATE_TYPE}
*/
bar () {
}
}
// Message: The type 'TEMPLATE_TYPE' is undefined.
class Foo {
/**
* @return {TEMPLATE_TYPE}
*/
invalidTemplateReference () {
}
}
/**
* @template TEMPLATE_TYPE
*/
class Bar {
/**
* @return {TEMPLATE_TYPE}
*/
validTemplateReference () {
}
}
// Message: The type 'TEMPLATE_TYPE' is undefined.
The following patterns are not considered problems:
/**
* @param {string} foo - Bar.
*/
function quux(foo) {
}
/**
* @param {Promise} foo - Bar.
*/
function quux(foo) {
}
class MyClass {}
/**
* @param {MyClass} foo - Bar.
*/
function quux(foo) {
console.log(foo);
}
quux(0);
const MyType = require('my-library').MyType;
/**
* @param {MyType} foo - Bar.
*/
function quux(foo) {
}
const MyType = require('my-library').MyType;
/**
* @param {MyType} foo - Bar.
*/
function quux(foo) {
}
import {MyType} from 'my-library';
/**
* @param {MyType} foo - Bar.
* @param {Object<string, number>} foo
* @param {Array<string>} baz
*/
function quux(foo, bar, baz) {
}
/*globals MyType*/
/**
* @param {MyType} foo - Bar.
* @param {HisType} bar - Foo.
*/
function quux(foo, bar) {
}
/**
* @typedef {Object} hello
* @property {string} a - a.
*/
/**
* @param {hello} foo
*/
function quux(foo) {
}
/**
* @param {Array<syntaxError} foo
*/
function quux(foo) {
}
/**
* Callback test.
*
* @callback addStuffCallback
* @param {String} sum - An test integer.
*/
/**
* Test Eslint.
*
* @param {addStuffCallback} callback - A callback to run.
*/
function testFunction(callback) {
callback();
}
/**
*
*
*/
function foo () {
}
/**
*
*
*/
function foo () {
}
/**
* @param {MyType} foo - Bar.
* @param {HisType} bar - Foo.
*/
function quux(foo, bar) {
}
// Options: [{"definedTypes":["MyType","HisType"]}]
/**
* @param {MyType} foo - Bar.
* @param {HisType} bar - Foo.
* @param {HerType} baz - Foo.
*/
function quux(foo, bar, baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"hertype":{"replacement":"HerType"},"histype":"HisType"}}}
// Options: [{"definedTypes":["MyType"]}]
/**
* @param {MyType} foo - Bar.
* @param {HisType} bar - Foo.
* @param {HerType} baz - Foo.
*/
function quux(foo, bar, baz) {
}
// Settings: {"jsdoc":{"preferredTypes":{"hertype":{"replacement":"HerType<>"},"histype":"HisType.<>"}}}
// Options: [{"definedTypes":["MyType"]}]
/**
* @template TEMPLATE_TYPE
* @param {TEMPLATE_TYPE} bar
* @return {TEMPLATE_TYPE}
*/
function foo (bar) {
};
/**
* @template TEMPLATE_TYPE
*/
class Foo {
/**
* @return {TEMPLATE_TYPE}
*/
bar () {
}
}
/**
* @template TEMPLATE_TYPE_A, TEMPLATE_TYPE_B
*/
class Foo {
/**
* @param {TEMPLATE_TYPE_A} baz
* @return {TEMPLATE_TYPE_B}
*/
bar (baz) {
}
}
/****/
/**
*
*/
function quux () {
}
require-description-complete-sentenceRequires that block description, explicit @description, and @param/@returns
tag descriptions are written in complete sentences, i.e.,
| Context | everywhere |
| Tags | param, returns, description |
| Aliases | arg, argument, return, desc |
The following patterns are considered problems:
/**
* foo.
*/
function quux () {
}
// Message: Sentence should start with an uppercase character.
/**
* @description foo.
*/
function quux () {
}
// Message: Sentence should start with an uppercase character.
/**
* Foo)
*/
function quux () {
}
// Message: Sentence must end with a period.
/**
* Foo.
*
* foo.
*/
function quux () {
}
// Message: Sentence should start with an uppercase character.
/**
* тест.
*/
function quux () {
}
// Message: Sentence should start with an uppercase character.
/**
* Foo
*/
function quux () {
}
// Message: Sentence must end with a period.
/**
* Foo
* Bar.
*/
function quux () {
}
// Message: A line of text is started with an uppercase character, but preceding line does not end the sentence.
/**
* Foo.
*
* @param foo foo.
*/
function quux (foo) {
}
// Message: Sentence should start with an uppercase character.
/**
* Foo.
*
* @param foo bar
*/
function quux (foo) {
}
// Message: Sentence should start with an uppercase character.
/**
* {@see Foo.bar} buz
*/
function quux (foo) {
}
// Message: Sentence should start with an uppercase character.
/**
* Foo.
*
* @returns {number} foo
*/
function quux (foo) {
}
// Message: Sentence should start with an uppercase character.
/**
* Foo.
*
* @returns foo.
*/
function quux (foo) {
}
// Message: Sentence should start with an uppercase character.
/**
* lorem ipsum dolor sit amet, consectetur adipiscing elit. pellentesque elit diam,
* iaculis eu dignissim sed, ultrices sed nisi. nulla at ligula auctor, consectetur neque sed,
* tincidunt nibh. vivamus sit amet vulputate ligula. vivamus interdum elementum nisl,
* vitae rutrum tortor semper ut. morbi porta ante vitae dictum fermentum.
* proin ut nulla at quam convallis gravida in id elit. sed dolor mauris, blandit quis ante at,
* consequat auctor magna. duis pharetra purus in porttitor mollis.
*/
function longDescription (foo) {
}
// Message: Sentence should start with an uppercase character.
/**
* @arg {number} foo - Foo
*/
function quux (foo) {
}
// Message: Sentence must end with a period.
/**
* @argument {number} foo - Foo
*/
function quux (foo) {
}
// Message: Sentence must end with a period.
/**
* @return {number} foo
*/
function quux (foo) {
}
// Message: Sentence should start with an uppercase character.
/**
* Returns bar.
*
* @return {number} bar
*/
function quux (foo) {
}
// Message: Sentence should start with an uppercase character.
The following patterns are not considered problems:
/**
* @param foo - Foo.
*/
function quux () {
}
/**
* Foo.
*/
function quux () {
}
/**
* Foo.
* Bar.
*/
function quux () {
}
/**
* Foo.
*
* Bar.
*/
function quux () {
}
/**
* Тест.
*/
function quux () {
}
/**
* Foo
* bar.
*/
function quux () {
}
/**
* @returns Foo bar.
*/
function quux () {
}
/**
* Foo. {@see Math.sin}.
*/
function quux () {
}
/**
* Foo {@see Math.sin} bar.
*/
function quux () {
}
/**
* Foo?
*
* Bar!
*
* Baz:
* 1. Foo.
* 2. Bar.
*/
function quux () {
}
/**
* Hello:
* World.
*/
function quux () {
}
/**
* Hello: world.
*/
function quux () {
}
/**
*
*/
function quux () {
}
/**
* @description Foo.
*/
function quux () {
}
require-descriptionRequires that all functions have a description.
@description tag.An options object may have any of the following properties:
contexts - Set to an array of strings representing the AST context
where you wish the rule to be applied (e.g., ClassDeclaration for ES6 classes).
Overrides the default contexts (see below).exemptedBy - Array of tags (e.g., ['type']) whose presence on the document
block avoids the need for a @description. Defaults to an empty array.| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression; others when contexts option enabled |
| Tags | description |
| Aliases | desc |
| Options | contexts, exemptedBy |
| Settings | overrideReplacesDocs, augmentsExtendsReplacesDocs, implementsReplacesDocs |
The following patterns are considered problems:
/**
*
*/
function quux () {
}
// Message: Missing JSDoc @description declaration.
/**
*
*/
class quux {
}
// Options: [{"contexts":["ClassDeclaration"]}]
// Message: Missing JSDoc @description declaration.
/**
*
*/
class quux {
}
// Options: [{"contexts":["ClassDeclaration"]}]
// Message: Missing JSDoc @description declaration.
/**
*
*/
class quux {
}
// Options: [{"contexts":["ClassDeclaration"]}]
// Message: Missing JSDoc @description declaration.
/**
* @description
*/
function quux () {
}
// Message: Missing JSDoc @description description.
/**
*
*/
interface quux {
}
// Options: [{"contexts":["TSInterfaceDeclaration"]}]
// Message: Missing JSDoc @description declaration.
/**
*
*/
var quux = class {
};
// Options: [{"contexts":["ClassExpression"]}]
// Message: Missing JSDoc @description declaration.
/**
*
*/
var quux = {
};
// Options: [{"contexts":["ObjectExpression"]}]
// Message: Missing JSDoc @description declaration.
/**
* @someDesc
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"description":{"message":"Please avoid `{{tagName}}`; use `{{replacement}}` instead","replacement":"someDesc"}}}}
// Message: Missing JSDoc @someDesc description.
/**
* @description
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"description":false}}}
// Message: Unexpected tag `@description`
The following patterns are not considered problems:
/**
* @description
* // arbitrary description content
*/
function quux () {
}
/**
* @description
* quux(); // does something useful
*/
function quux () {
}
/**
* @description <caption>Valid usage</caption>
* quux(); // does something useful
*
* @description <caption>Invalid usage</caption>
* quux('random unwanted arg'); // results in an error
*/
function quux () {
}
/**
*
*/
class quux {
}
/**
*
*/
function quux () {
}
// Options: [{"contexts":["ClassDeclaration"]}]
/**
* @type {MyCallback}
*/
function quux () {
}
// Options: [{"exemptedBy":["type"]}]
/**
*
*/
interface quux {
}
/**
*
*/
var quux = class {
};
/**
*
*/
var quux = {
};
require-exampleRequires that all functions have examples.
@example tags.This rule has an object option:
exemptedBy - Array of tags (e.g., ['type']) whose presence on the document
block avoids the need for an @example. Defaults to an empty array.
avoidExampleOnConstructors (default: false) - Set to true to avoid the
need for an example on a constructor (whether indicated as such by a
jsdoc tag or by being within an ES6 class).
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | example |
| Options | exemptedBy, avoidExampleOnConstructors |
| Settings | overrideReplacesDocs, augmentsExtendsReplacesDocs, implementsReplacesDocs |
The following patterns are considered problems:
/**
*
*/
function quux () {
}
// Message: Missing JSDoc @example declaration.
/**
* @example
*/
function quux () {
}
// Message: Missing JSDoc @example description.
/**
* @constructor
*/
function f () {
}
// Settings: {"jsdoc":{"avoidExampleOnConstructors":true}}
// Message: `settings.jsdoc.avoidExampleOnConstructors` has been removed, use options in the rule `require-example` instead.
/**
* @constructor
*/
function quux () {
}
// Message: Missing JSDoc @example declaration.
/**
* @constructor
* @example
*/
function quux () {
}
// Message: Missing JSDoc @example description.
The following patterns are not considered problems:
/**
* @example
* // arbitrary example content
*/
function quux () {
}
/**
* @example
* quux(); // does something useful
*/
function quux () {
}
/**
* @example <caption>Valid usage</caption>
* quux(); // does something useful
*
* @example <caption>Invalid usage</caption>
* quux('random unwanted arg'); // results in an error
*/
function quux () {
}
/**
* @constructor
*/
function quux () {
}
// Options: [{"avoidExampleOnConstructors":true}]
/**
* @constructor
* @example
*/
function quux () {
}
// Options: [{"avoidExampleOnConstructors":true}]
class Foo {
/**
*
*/
constructor () {
}
}
// Options: [{"avoidExampleOnConstructors":true}]
/**
* @inheritdoc
*/
function quux () {
}
/**
* @type {MyCallback}
*/
function quux () {
}
// Options: [{"exemptedBy":["type"]}]
require-hyphen-before-param-descriptionRequires a hyphen before the @param description.
This rule takes one optional string argument. If it is "always" then a problem is raised when there is no hyphen before the description. If it is "never" then a problem is raised when there is a hyphen before the description. The default value is "always".
| Context | everywhere |
| Tags | param |
| Aliases | arg, argument |
| Options | (a string matching `"always" |
The following patterns are considered problems:
/**
* @param foo Foo.
*/
function quux () {
}
// Options: ["always"]
// Message: There must be a hyphen before @param description.
/**
* @param foo Foo.
*/
function quux () {
}
// Message: There must be a hyphen before @param description.
/**
* @param foo - Foo.
*/
function quux () {
}
// Options: ["never"]
// Message: There must be no hyphen before @param description.
/**
* @param foo - foo
* @param foo foo
*/
function quux () {
}
// Options: ["always"]
// Message: There must be a hyphen before @param description.
/**
* @param foo foo
* bar
* @param bar - bar
*/
function quux () {
}
// Options: ["always"]
// Message: There must be a hyphen before @param description.
/**
* @param foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":false}}}
// Message: Unexpected tag `@param`
The following patterns are not considered problems:
/**
* @param foo - Foo.
*/
function quux () {
}
// Options: ["always"]
/**
* @param foo Foo.
*/
function quux () {
}
// Options: ["never"]
/**
* @param foo
*/
function quux () {
}
require-jsdocChecks for presence of jsdoc comments, on class declarations as well as functions.
Accepts one optional options object with the following optional keys.
publicOnly - This option will insist that missing jsdoc blocks are
only reported for function bodies / class declarations that are exported
from the module. May be a boolean or object. If set to true, the defaults
below will be used. If unset, jsdoc block reporting will not be limited to
exports.
This object supports the following optional boolean keys (false unless
otherwise noted):
ancestorsOnly - Only check node ancestors to check if node is exportedesm - ESM exports are checked for JSDoc comments (Defaults to true)cjs - CommonJS exports are checked for JSDoc comments (Defaults to true)window - Window global exports are checked for JSDoc commentsrequire - An object with the following optional boolean keys which all
default to false except as noted, indicating the contexts where the rule
will apply:
ArrowFunctionExpressionClassDeclarationClassExpressionFunctionDeclaration (defaults to true)FunctionExpressionMethodDefinitioncontexts - Set this to an array of strings representing the additional
AST contexts where you wish the rule to be applied (e.g., Property for
properties). Defaults to an empty array.
exemptEmptyFunctions (default: false) - When true, the rule will not report
missing jsdoc blocks above functions/methods with no parameters or return values
(intended where variable names are sufficient for themselves as documentation).
| Context | ArrowFunctionExpression, ClassDeclaration, ClassExpression, FunctionDeclaration, FunctionExpression |
| Tags | N/A |
| Options | publicOnly, require, contexts, exemptEmptyFunctions |
The following patterns are considered problems:
export var test = function () {
};
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
function test () {
}
export var test2 = test;
// Options: [{"publicOnly":true,"require":{"FunctionDeclaration":true}}]
// Message: Missing JSDoc comment.
export const test = () => {
};
// Options: [{"publicOnly":true,"require":{"ArrowFunctionExpression":true}}]
// Message: Missing JSDoc comment.
export let test = class {
};
// Options: [{"publicOnly":true,"require":{"ClassExpression":true}}]
// Message: Missing JSDoc comment.
export default function () {}
// Options: [{"publicOnly":{"cjs":false,"esm":true,"window":false},"require":{"FunctionDeclaration":true}}]
// Message: Missing JSDoc comment.
export default () => {}
// Options: [{"publicOnly":{"cjs":false,"esm":true,"window":false},"require":{"ArrowFunctionExpression":true}}]
// Message: Missing JSDoc comment.
export default (function () {})
// Options: [{"publicOnly":{"cjs":false,"esm":true,"window":false},"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
export default class {}
// Options: [{"publicOnly":{"cjs":false,"esm":true,"window":false},"require":{"ClassDeclaration":true}}]
// Message: Missing JSDoc comment.
function quux (foo) {
}
// Message: Missing JSDoc comment.
// Settings: {"jsdoc":{"exemptEmptyFunctions":true}}
// Message: `settings.jsdoc.exemptEmptyFunctions` has been removed, use options in the rule `require-jsdoc` instead.
function quux (foo) {
}
// Options: [{"exemptEmptyFunctions":true}]
// Message: Missing JSDoc comment.
function myFunction() {}
// Message: Missing JSDoc comment.
/**
* Description for A.
*/
class A {
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
// Message: Missing JSDoc comment.
class A {
/**
* Description for constructor.
* @param {object[]} xs - xs
*/
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
// Message: Missing JSDoc comment.
class A extends B {
/**
* Description for constructor.
* @param {object[]} xs - xs
*/
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
// Message: Missing JSDoc comment.
export class A extends B {
/**
* Description for constructor.
* @param {object[]} xs - xs
*/
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
// Message: Missing JSDoc comment.
export default class A extends B {
/**
* Description for constructor.
* @param {object[]} xs - xs
*/
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
// Message: Missing JSDoc comment.
var myFunction = () => {}
// Options: [{"require":{"ArrowFunctionExpression":true}}]
// Message: Missing JSDoc comment.
var myFunction = () => () => {}
// Options: [{"require":{"ArrowFunctionExpression":true}}]
// Message: Missing JSDoc comment.
var foo = function() {}
// Options: [{"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
const foo = {bar() {}}
// Options: [{"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
var foo = {bar: function() {}}
// Options: [{"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
function foo (abc) {}
// Options: [{"exemptEmptyFunctions":false}]
// Message: Missing JSDoc comment.
function foo () {
return true;
}
// Options: [{"exemptEmptyFunctions":false}]
// Message: Missing JSDoc comment.
module.exports = function quux () {
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
module.exports = function quux () {
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
module.exports = {
method: function() {
}
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
module.exports = {
test: {
test2: function() {
}
}
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
module.exports = {
test: {
test2: function() {
}
}
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
const test = module.exports = function () {
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
/**
*
*/
const test = module.exports = function () {
}
test.prototype.method = function() {}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
const test = function () {
}
module.exports = {
test: test
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
const test = () => {
}
module.exports = {
test: test
}
// Options: [{"publicOnly":true,"require":{"ArrowFunctionExpression":true}}]
// Message: Missing JSDoc comment.
class Test {
method() {
}
}
module.exports = Test;
// Options: [{"publicOnly":true,"require":{"MethodDefinition":true}}]
// Message: Missing JSDoc comment.
export default function quux () {
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
export default function quux () {
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
function quux () {
}
export default quux;
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
export function test() {
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
export function test() {
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
var test = function () {
}
var test2 = 2;
export { test, test2 }
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
var test = function () {
}
export { test as test2 }
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
export default class A {
}
// Options: [{"publicOnly":true,"require":{"ClassDeclaration":true}}]
// Message: Missing JSDoc comment.
export default class A {
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"ClassDeclaration":true}}]
// Message: Missing JSDoc comment.
var test = function () {
}
// Options: [{"publicOnly":{"window":true},"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
window.test = function () {
}
// Options: [{"publicOnly":{"window":true},"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
function test () {
}
// Options: [{"publicOnly":{"window":true}}]
// Message: Missing JSDoc comment.
module.exports = function() {
}
// Options: [{"publicOnly":{"cjs":true,"esm":false,"window":false},"require":{"FunctionExpression":true}}]
// Message: Missing JSDoc comment.
export function someMethod() {
}
// Options: [{"publicOnly":{"cjs":false,"esm":true,"window":false},"require":{"FunctionDeclaration":true}}]
// Message: Missing JSDoc comment.
export function someMethod() {
}
// Options: [{"publicOnly":{"cjs":false,"esm":true,"window":false},"require":{"FunctionDeclaration":true}}]
// Message: Missing JSDoc comment.
const myObject = {
myProp: true
};
// Options: [{"contexts":["Property"]}]
// Message: Missing JSDoc comment.
The following patterns are not considered problems:
var array = [1,2,3];
array.forEach(function() {});
/**
* @class MyClass
**/
function MyClass() {}
/**
Function doing something
*/
function myFunction() {}
/**
Function doing something
*/
var myFunction = function() {};
/**
Function doing something
*/
Object.myFunction = function () {};
var obj = {
/**
* Function doing something
**/
myFunction: function () {} };
/**
@func myFunction
*/
function myFunction() {}
/**
@method myFunction
*/
function myFunction() {}
/**
@function myFunction
*/
function myFunction() {}
/**
@func myFunction
*/
var myFunction = function () {}
/**
@method myFunction
*/
var myFunction = function () {}
/**
@function myFunction
*/
var myFunction = function () {}
/**
@func myFunction
*/
Object.myFunction = function() {}
/**
@method myFunction
*/
Object.myFunction = function() {}
/**
@function myFunction
*/
Object.myFunction = function() {}
(function(){})();
var object = {
/**
* @func myFunction - Some function
*/
myFunction: function() {} }
var object = {
/**
* @method myFunction - Some function
*/
myFunction: function() {} }
var object = {
/**
* @function myFunction - Some function
*/
myFunction: function() {} }
var array = [1,2,3];
array.filter(function() {});
Object.keys(this.options.rules || {}).forEach(function(name) {}.bind(this));
var object = { name: 'key'};
Object.keys(object).forEach(function() {})
function myFunction() {}
// Options: [{"require":{"ClassDeclaration":true,"FunctionDeclaration":false,"MethodDefinition":true}}]
var myFunction = function() {}
// Options: [{"require":{"ClassDeclaration":true,"FunctionDeclaration":false,"MethodDefinition":true}}]
/**
* Description for A.
*/
class A {
/**
* Description for constructor.
* @param {object[]} xs - xs
*/
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
/**
* Description for A.
*/
class App extends Component {
/**
* Description for constructor.
* @param {object[]} xs - xs
*/
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
/**
* Description for A.
*/
export default class App extends Component {
/**
* Description for constructor.
* @param {object[]} xs - xs
*/
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
/**
* Description for A.
*/
export class App extends Component {
/**
* Description for constructor.
* @param {object[]} xs - xs
*/
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":true,"MethodDefinition":true}}]
class A {
constructor(xs) {
this.a = xs;
}
}
// Options: [{"require":{"ClassDeclaration":false,"MethodDefinition":false}}]
/**
* Function doing something
*/
var myFunction = () => {}
// Options: [{"require":{"ArrowFunctionExpression":true}}]
/**
* Function doing something
*/
var myFunction = function () {}
// Options: [{"require":{"ArrowFunctionExpression":true}}]
/**
* Function doing something
*/
var myFunction = () => {}
// Options: [{"require":{"ArrowFunctionExpression":false}}]
/**
Function doing something
*/
var myFunction = () => () => {}
// Options: [{"require":{"ArrowFunctionExpression":true}}]
setTimeout(() => {}, 10);
// Options: [{"require":{"ArrowFunctionExpression":true}}]
/**
JSDoc Block
*/
var foo = function() {}
// Options: [{"require":{"FunctionExpression":true}}]
const foo = {/**
JSDoc Block
*/
bar() {}}
// Options: [{"require":{"FunctionExpression":true}}]
var foo = {/**
JSDoc Block
*/
bar: function() {}}
// Options: [{"require":{"FunctionExpression":true}}]
var foo = { [function() {}]: 1 };
// Options: [{"require":{"FunctionExpression":true}}]
function foo () {}
// Options: [{"exemptEmptyFunctions":true}]
function foo () {
return;
}
// Options: [{"exemptEmptyFunctions":true}]
const test = {};
/**
* test
*/
test.method = function () {
}
module.exports = {
prop: { prop2: test.method }
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
/**
*
*/
function test() {
}
module.exports = {
prop: { prop2: test }
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
/**
*
*/
test = function() {
}
module.exports = {
prop: { prop2: test }
}
// Options: [{"publicOnly":{"cjs":true,"esm":false,"window":false},"require":{"FunctionExpression":true}}]
/**
*
*/
test = function() {
}
exports.someMethod = {
prop: { prop2: test }
}
// Options: [{"publicOnly":{"cjs":false,"esm":true,"window":false},"require":{"FunctionExpression":true}}]
/**
*
*/
const test = () => {
}
module.exports = {
prop: { prop2: test }
}
// Options: [{"publicOnly":true,"require":{"ArrowFunctionExpression":true}}]
const test = () => {
}
module.exports = {
prop: { prop2: test }
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"ArrowFunctionExpression":true}}]
/**
*
*/
window.test = function() {
}
module.exports = {
prop: window
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
test = function() {
}
/**
*
*/
test = function() {
}
module.exports = {
prop: { prop2: test }
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
test = function() {
}
test = 2;
module.exports = {
prop: { prop2: test }
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
/**
*
*/
function test() {
}
/**
*
*/
test.prototype.method = function() {
}
module.exports = {
prop: { prop2: test }
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
class Test {
/**
* Test
*/
method() {
}
}
module.exports = Test;
// Options: [{"publicOnly":true,"require":{"MethodDefinition":true}}]
/**
*
*/
export default function quux () {
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
/**
*
*/
export default function quux () {
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"FunctionExpression":true}}]
/**
*
*/
function quux () {
}
export default quux;
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
function quux () {
}
export default quux;
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"FunctionExpression":true}}]
/**
*
*/
export function test() {
}
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
/**
*
*/
export function test() {
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"FunctionExpression":true}}]
/**
*
*/
var test = function () {
}
var test2 = 2;
export { test, test2 }
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
/**
*
*/
var test = function () {
}
export { test as test2 }
// Options: [{"publicOnly":true,"require":{"FunctionExpression":true}}]
/**
*
*/
export default class A {
}
// Options: [{"publicOnly":{"ancestorsOnly":true},"require":{"ClassDeclaration":true}}]
/**
*
*/
var test = function () {
}
// Options: [{"publicOnly":{"window":true},"require":{"FunctionExpression":true}}]
let test = function () {
}
// Options: [{"publicOnly":{"window":true},"require":{"FunctionExpression":true}}]
let test = class {
}
// Options: [{"publicOnly":true,"require":{"ClassExpression":false}}]
/**
*
*/
let test = class {
}
// Options: [{"publicOnly":true,"require":{"ClassExpression":true}}]
export function someMethod() {
}
// Options: [{"publicOnly":{"cjs":true,"esm":false,"window":false},"require":{"FunctionDeclaration":true}}]
export function someMethod() {
}
// Options: [{"publicOnly":{"cjs":true,"esm":false,"window":false},"require":{"FunctionDeclaration":true}}]
exports.someMethod = function() {
}
// Options: [{"publicOnly":{"cjs":false,"esm":true,"window":false},"require":{"FunctionExpression":true}}]
const myObject = {
myProp: true
};
// Options: [{"contexts":[]}]
require-param-descriptionRequires that @param tag has description value.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | param |
| Aliases | arg, argument |
The following patterns are considered problems:
/**
* @param foo
*/
function quux (foo) {
}
// Message: Missing JSDoc @param "foo" description.
/**
* @arg foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"arg"}}}
// Message: Missing JSDoc @arg "foo" description.
/**
* @param foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":false}}}
// Message: Unexpected tag `@param`
The following patterns are not considered problems:
/**
*
*/
function quux (foo) {
}
/**
* @param foo Foo.
*/
function quux (foo) {
}
require-param-nameRequires that all function parameters have name.
The
@paramtag requires you to specify the name of the parameter you are documenting. You can also include the parameter's type, enclosed in curly brackets, and a description of the parameter.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | param |
| Aliases | arg, argument |
The following patterns are considered problems:
/**
* @param
*/
function quux (foo) {
}
// Message: There must be an identifier after @param type.
/**
* @param {string}
*/
function quux (foo) {
}
// Message: There must be an identifier after @param tag.
/**
* @param foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":false}}}
// Message: Unexpected tag `@param`
The following patterns are not considered problems:
/**
* @param foo
*/
function quux (foo) {
}
/**
* @param {string} foo
*/
function quux (foo) {
}
require-param-typeRequires that @param tag has type value.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | param |
| Aliases | arg, argument |
The following patterns are considered problems:
/**
* @param foo
*/
function quux (foo) {
}
// Message: Missing JSDoc @param "foo" type.
/**
* @arg foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"arg"}}}
// Message: Missing JSDoc @arg "foo" type.
/**
* @param foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":false}}}
// Message: Unexpected tag `@param`
The following patterns are not considered problems:
/**
*
*/
function quux (foo) {
}
/**
* @param {number} foo
*/
function quux (foo) {
}
require-paramRequires that all function parameters are documented.
An options object accepts one optional property:
exemptedBy - Array of tags (e.g., ['type']) whose presence on the document
block avoids the need for a @param. Defaults to an empty array.| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | param |
| Aliases | arg, argument |
| Options | exemptedBy |
| Settings | overrideReplacesDocs, augmentsExtendsReplacesDocs, implementsReplacesDocs |
The following patterns are considered problems:
/**
*
*/
function quux (foo) {
}
// Message: Missing JSDoc @param "foo" declaration.
/**
*
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"arg"}}}
// Message: Missing JSDoc @arg "foo" declaration.
/**
* @param foo
*/
function quux (foo, bar) {
}
// Message: Missing JSDoc @param "bar" declaration.
/**
* @override
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"overrideReplacesDocs":false}}
// Message: Missing JSDoc @param "foo" declaration.
/**
* @implements
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"implementsReplacesDocs":false}}
// Message: Missing JSDoc @param "foo" declaration.
/**
* @augments
*/
function quux (foo) {
}
// Message: Missing JSDoc @param "foo" declaration.
/**
* @extends
*/
function quux (foo) {
}
// Message: Missing JSDoc @param "foo" declaration.
/**
* @override
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Settings: {"jsdoc":{"overrideReplacesDocs":false}}
// Message: Missing JSDoc @param "foo" declaration.
/**
* @implements
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Settings: {"jsdoc":{"implementsReplacesDocs":false}}
// Message: Missing JSDoc @param "foo" declaration.
/**
* @augments
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Message: Missing JSDoc @param "foo" declaration.
/**
* @extends
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Message: Missing JSDoc @param "foo" declaration.
export class SomeClass {
/**
* @param property
*/
constructor(private property: string, private foo: number) {}
}
// Message: Missing JSDoc @param "foo" declaration.
/**
*
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":false}}}
// Message: Unexpected tag `@param`
The following patterns are not considered problems:
/**
* @param foo
*/
function quux (foo) {
}
/**
* @inheritdoc
*/
function quux (foo) {
}
/**
* @arg foo
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"param":"arg"}}}
/**
* @override
* @param foo
*/
function quux (foo) {
}
/**
* @override
*/
function quux (foo) {
}
/**
* @override
*/
class A {
/**
*
*/
quux (foo) {
}
}
/**
* @override
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"overrideReplacesDocs":true}}
/**
* @implements
*/
class A {
/**
*
*/
quux (foo) {
}
}
/**
* @implements
*/
function quux (foo) {
}
/**
* @implements
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"implementsReplacesDocs":true}}
/**
* @implements
* @param foo
*/
function quux (foo) {
}
/**
* @augments
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"augmentsExtendsReplacesDocs":true}}
/**
* @augments
* @param foo
*/
function quux (foo) {
}
/**
* @extends
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"augmentsExtendsReplacesDocs":true}}
/**
* @extends
* @param foo
*/
function quux (foo) {
}
/**
* @augments
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"augmentsExtendsReplacesDocs":true}}
/**
* @extends
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"augmentsExtendsReplacesDocs":true}}
/**
* @override
*/
class A {
/**
* @param foo
*/
quux (foo) {
}
}
/**
* @override
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Settings: {"jsdoc":{"overrideReplacesDocs":true}}
/**
* @implements
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Settings: {"jsdoc":{"implementsReplacesDocs":true}}
/**
* @implements
*/
class A {
/**
* @param foo
*/
quux (foo) {
}
}
/**
* @augments
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Settings: {"jsdoc":{"augmentsExtendsReplacesDocs":true}}
/**
* @augments
*/
class A {
/**
* @param foo
*/
quux (foo) {
}
}
/**
* @extends
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Settings: {"jsdoc":{"augmentsExtendsReplacesDocs":true}}
/**
* @extends
*/
class A {
/**
* @param foo
*/
quux (foo) {
}
}
/**
* @augments
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Settings: {"jsdoc":{"augmentsExtendsReplacesDocs":true}}
/**
* @extends
*/
class A {
/**
*
*/
quux (foo) {
}
}
// Settings: {"jsdoc":{"augmentsExtendsReplacesDocs":true}}
/**
* @private
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"ignorePrivate":true}}
// issue 182: optional chaining
/** @const {boolean} test */
const test = something?.find(_ => _)
/** @type {RequestHandler} */
function foo(req, res, next) {}
/**
* @type {MyCallback}
*/
function quux () {
}
// Options: [{"exemptedBy":["type"]}]
/**
* @override
*/
var A = class {
/**
*
*/
quux (foo) {
}
}
export class SomeClass {
/**
* @param property
*/
constructor(private property: string) {}
}
require-returns-checkChecks if the return expression exists in function body and in the comment.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | returns |
| Aliases | return |
The following patterns are considered problems:
/**
* @returns
*/
function quux (foo) {
}
// Message: JSDoc @returns declaration present but return expression not available in function.
/**
* @return
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"returns":"return"}}}
// Message: JSDoc @return declaration present but return expression not available in function.
/**
* @returns
*/
const quux = () => {}
// Message: JSDoc @returns declaration present but return expression not available in function.
/**
* @returns {undefined} Foo.
* @returns {String} Foo.
*/
function quux () {
return foo;
}
// Message: Found more than one @returns declaration.
const language = {
/**
* @param {string} name
* @returns {string}
*/
get name() {
this._name = name;
}
}
// Message: JSDoc @returns declaration present but return expression not available in function.
class Foo {
/**
* @returns {string}
*/
bar () {
}
}
// Message: JSDoc @returns declaration present but return expression not available in function.
/**
* @returns
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"returns":false}}}
// Message: Unexpected tag `@returns`
The following patterns are not considered problems:
/**
* @returns Foo.
*/
function quux () {
return foo;
}
/**
* @returns {string} Foo.
*/
function quux () {
return foo;
}
/**
* @returns {string} Foo.
*/
function quux () {
return foo;
}
/**
*
*/
function quux () {
}
/**
* @returns {*} Foo.
*/
const quux = () => foo;
/**
* @returns {undefined} Foo.
*/
function quux () {}
/**
* @returns { void } Foo.
*/
function quux () {}
/**
* @returns {Promise<void>}
*/
async function quux() {}
/**
* @returns {Promise<void>}
*/
const quux = async function () {}
/**
* @returns {Promise<void>}
*/
const quux = async () => {}
/**
* @returns Foo.
* @abstract
*/
function quux () {
throw new Error('must be implemented by subclass!');
}
/**
* @returns Foo.
* @virtual
*/
function quux () {
throw new Error('must be implemented by subclass!');
}
/**
* @returns Foo.
* @constructor
*/
function quux () {
}
/**
* @interface
*/
class Foo {
/**
* @returns {string}
*/
bar () {
}
}
/**
* @returns {undefined} Foo.
*/
function quux () {
}
/**
* @returns {void} Foo.
*/
function quux () {
}
/**
* @returns {void} Foo.
*/
function quux () {
return undefined;
}
/**
* @returns {void} Foo.
*/
function quux () {
return;
}
/**
*
*/
function quux () {
return undefined;
}
/**
*
*/
function quux () {
return;
}
/**
* @returns {true}
*/
function quux () {
try {
return true;
} catch (err) {
}
return;
}
/**
* @returns {true}
*/
function quux () {
try {
} finally {
return true;
}
return;
}
/**
* @returns {true}
*/
function quux () {
try {
return;
} catch (err) {
}
return true;
}
/**
* @returns {true}
*/
function quux () {
try {
something();
} catch (err) {
return true;
}
return;
}
/**
* @returns {true}
*/
function quux () {
switch (true) {
case 'abc':
return true;
}
return;
}
/**
* @returns {true}
*/
function quux () {
switch (true) {
case 'abc':
return;
}
return true;
}
/**
* @returns {true}
*/
function quux () {
for (const i of abc) {
return true;
}
return;
}
/**
* @returns {true}
*/
function quux () {
if (true) {
return;
}
return true;
}
/**
* @returns {true}
*/
function quux () {
if (true) {
return true;
}
}
/**
* @returns {true}
*/
function quux () {
if (true) {
return;
} else {
return true;
}
return;
}
require-returns-descriptionRequires that @returns tag has description value.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | returns |
| Aliases | return |
The following patterns are considered problems:
/**
* @returns
*/
function quux (foo) {
}
// Message: Missing JSDoc @returns description.
/**
* @return
*/
function quux (foo) {
}
// Settings: {"jsdoc":{"tagNamePreference":{"returns":"return"}}}
// Message: Missing JSDoc @return description.
/**
* @returns
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"returns":false}}}
// Message: Unexpected tag `@returns`
The following patterns are not considered problems:
/**
*
*/
function quux () {
}
/**
* @returns Foo.
*/
function quux () {
}
/**
* @returns {undefined}
*/
function quux () {
}
/**
* @returns {void}
*/
function quux () {
}
require-returns-typeRequires that @returns tag has type value.
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | returns |
| Aliases | return |
The following patterns are considered problems:
/**
* @returns
*/
function quux () {
}
// Message: Missing JSDoc @returns type.
/**
* @returns Foo.
*/
function quux () {
}
// Message: Missing JSDoc @returns type.
/**
* @return Foo.
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"returns":"return"}}}
// Message: Missing JSDoc @return type.
/**
* @returns
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"returns":false}}}
// Message: Unexpected tag `@returns`
The following patterns are not considered problems:
/**
* @returns {number}
*/
function quux () {
}
require-returnsRequires returns are documented.
exemptedBy - Array of tags (e.g., ['type']) whose presence on the document
block avoids the need for a @returns. Defaults to an empty array.forceRequireReturn - Set to true to always insist on
@returns documentation regardless of implicit or explicit return's
in the function. May be desired to flag that a project is aware of an
undefined/void return. Defaults to false.forceReturnsWithAsync - By default async functions that do not explicitly return a value pass this rule. You can force all async functions to require return statements by setting forceReturnsWithAsync to true on the options object. This may be useful as an async function will always return a Promise, even if the Promise returns void. Defaults to false.'jsdoc/require-jsdoc': ['error', {forceReturnsWithAsync: true}]
| Context | ArrowFunctionExpression, FunctionDeclaration, FunctionExpression |
| Tags | returns |
| Aliases | return |
| Options | exemptedBy, forceRequireReturn, forceReturnsWithAsync |
| Settings | overrideReplacesDocs, augmentsExtendsReplacesDocs, implementsReplacesDocs |
The following patterns are considered problems:
/**
*
*/
function quux (foo) {
return foo;
}
// Message: Missing JSDoc @returns declaration.
/**
*
*/
const foo = () => ({
bar: 'baz'
})
// Message: Missing JSDoc @returns declaration.
/**
*
*/
const foo = bar=>({ bar })
// Message: Missing JSDoc @returns declaration.
/**
*
*/
const foo = bar => bar.baz()
// Message: Missing JSDoc @returns declaration.
/**
*
*/
function quux (foo) {
return foo;
}
// Settings: {"jsdoc":{"tagNamePreference":{"returns":"return"}}}
// Message: Missing JSDoc @return declaration.
/**
*
*/
function foo() {}
/**
*
*/
function bar() {}
// Settings: {"jsdoc":{"forceRequireReturn":true}}
// Message: `settings.jsdoc.forceRequireReturn` has been removed, use options in the rule `require-returns` instead.
/**
*
*/
async function quux() {
}
// Options: [{"forceRequireReturn":true}]
// Message: Missing JSDoc @returns declaration.
/**
*
*/
const quux = async function () {}
// Options: [{"forceRequireReturn":true}]
// Message: Missing JSDoc @returns declaration.
/**
*
*/
const quux = async () => {}
// Options: [{"forceRequireReturn":true}]
// Message: Missing JSDoc @returns declaration.
/**
*
*/
async function quux () {}
// Options: [{"forceRequireReturn":true}]
// Message: Missing JSDoc @returns declaration.
/**
*
*/
function quux () {
}
// Options: [{"forceRequireReturn":true}]
// Message: Missing JSDoc @returns declaration.
const language = {
/**
* @param {string} name
*/
get name() {
return this._name;
}
}
// Message: Missing JSDoc @returns declaration.
/**
*
*/
async function quux () {
}
// Options: [{"forceReturnsWithAsync":true}]
// Message: Missing JSDoc @returns declaration.
/**
* @returns {undefined}
* @returns {void}
*/
function quux (foo) {
return foo;
}
// Message: Found more than one @returns declaration.
/**
* @returns
*/
function quux () {
}
// Settings: {"jsdoc":{"tagNamePreference":{"returns":false}}}
// Message: Unexpected tag `@returns`
The following patterns are not considered problems:
/**
* @returns Foo.
*/
function quux () {
return foo;
}
/**
*
*/
function quux () {
}
/**
*
*/
function quux (bar) {
bar.filter(baz => {
return baz.corge();
})
}
/**
* @returns Array
*/
function quux (bar) {
return bar.filter(baz => {
return baz.corge();
})
}
/**
* @returns Array
*/
const quux = (bar) => bar.filter(({ corge }) => corge())
/**
* @inheritdoc
*/
function quux (foo) {
}
/**
* @override
*/
function quux (foo) {
}
/**
* @constructor
*/
function quux (foo) {
}
/**
* @implements
*/
function quux (foo) {
}
/**
* @override
*/
function quux (foo) {
return foo;
}
/**
* @class
*/
function quux (foo) {
}
/**
* @constructor
*/
function quux (foo) {
}
/**
* @returns {Object}
*/
function quux () {
return {a: foo};
}
/**
* @returns {Object}
*/
const quux = () => ({a: foo});
/**
* @returns {Object}
*/
const quux = () => {
return {a: foo}
};
/**
* @returns {void}
*/
function quux () {
}
/**
* @returns {void}
*/
const quux = () => {
}
/**
* @returns {undefined}
*/
function quux () {
}
/**
* @returns {undefined}
*/
const quux = () => {
}
/**
*
*/
function quux () {
}
/**
*
*/
const quux = () => {
}
class Foo {
/**
*
*/
constructor () {
}
}
// Options: [{"forceRequireReturn":true}]
const language = {
/**
* @param {string} name
*/
set name(name) {
this._name = name;
}
}
/**
* @returns {void}
*/
function quux () {
}
// Options: [{"forceRequireReturn":true}]
/**
* @returns {void}
*/
function quux () {
return undefined;
}
/**
* @returns {void}
*/
function quux () {
return undefined;
}
// Options: [{"forceRequireReturn":true}]
/**
* @returns {void}
*/
function quux () {
return;
}
/**
* @returns {void}
*/
function quux () {
}
// Options: [{"forceRequireReturn":true}]
/**
* @returns {void}
*/
function quux () {
return;
}
// Options: [{"forceRequireReturn":true}]
/** @type {RequestHandler} */
function quux (req, res , next) {
return;
}
/**
* @returns {Promise}
*/
async function quux () {
}
// Options: [{"forceRequireReturn":true}]
/**
* @returns {Promise}
*/
async function quux () {
}
// Options: [{"forceReturnsWithAsync":true}]
/**
*
*/
async function quux () {}
/**
*
*/
const quux = async function () {}
/**
*
*/
const quux = async () => {}
/** foo class */
class foo {
/** foo constructor */
constructor () {
// =>
this.bar = true;
}
}
export default foo;
/**
*
*/
function quux () {
}
// Options: [{"forceReturnsWithAsync":true}]
/**
* @type {MyCallback}
*/
function quux () {
}
// Options: [{"exemptedBy":["type"]}]
valid-typesRequires all types to be valid JSDoc or Closure compiler types without syntax errors.
Also impacts behaviors on namepath (or event)-defining and pointing tags:
@external, @host, @name, @typedef@event, @callback,
@class, @constructor, @constant, @const,
@function, @func, @method, @interface, @member, @var,
@mixin, @namespace@alias, @augments, @extends, @lends, @memberof, @memberof!, @mixes, @this@listens, @fires,
@emits@borrows...with the following applying to the above sets:
allowEmptyNamepaths to
false as these tags might have some indicative value without a path
or may allow a name expressed elsewhere on the block (but sets 1 and 3 will
always fail if empty)@borrows <that namepath> as <this namepath>,
check that both namepaths are present and valid and ensure there is an as
between them. In the case of <this namepath>, it can be preceded by
one of the name path operators, #, ., or ~.@memberof and @memberof! (part of set 3), as
per the specification, they also
allow #, ., or ~ at the end (which is not allowed at the end of
normal paths).allowEmptyNamepaths (default: true) - Set to false to disallow
empty name paths with @callback, @event, @class, @constructor,
@constant, @const, @function, @func, @method, @interface,
@member, @var, @mixin, @namespace, @listens, @fires,
or @emits (these might often be expected to have an accompanying
name path, though they have some indicative value without one; these
may also allow names to be defined in another manner elsewhere in
the block)checkSeesForNamepaths (default: false) - Set this to true to insist
that @see only use name paths (the tag is normally permitted to
allow other text)| Context | everywhere |
| Tags | For name only unless otherwise stated: alias, augments, borrows, callback, class (for name and type), constant (for name and type), enum (for type), event, external, fires, function, implements (for type), interface, lends, listens, member (for name and type), memberof, memberof!, mixes, mixin, module (for name and type), name, namespace (for name and type), param (for name and type), property (for name and type), returns (for type), this, throws (for type), type (for type), typedef (for name and type), yields (for type) |
| Aliases | extends, constructor, const, host, emits, func, method, var, arg, argument, prop, return, exception, yield |
| Closure-only | For type only: package, private, protected, public, static |
| Options | allowEmptyNamepaths, checkSeesForNamepaths |
The following patterns are considered problems:
/**
* @param {Array<string} foo
*/
function quux() {
}
// Message: Syntax error in type: Array<string
/**
* @memberof module:namespace.SomeClass<~
*/
function quux() {
}
// Message: Syntax error in type: module:namespace.SomeClass<~
/**
* @memberof module:namespace.SomeClass~<
*/
function quux() {
}
// Message: Syntax error in type: module:namespace.SomeClass~<
/**
* @borrows foo% as bar
*/
function quux() {
}
// Message: Syntax error in type: foo%
/**
* @borrows #foo as bar
*/
function quux() {
}
// Message: Syntax error in type: #foo
/**
* @borrows foo as bar%
*/
function quux() {
}
// Message: Syntax error in type: bar%
/**
* @borrows foo
*/
function quux() {
}
// Message: @borrows must have an "as" expression. Found ""
/**
* @see foo%
*/
function quux() {
}
// Options: [{"checkSeesForNamepaths":true}]
// Message: Syntax error in type: foo%
/** */
function foo() {}
// Settings: {"jsdoc":{"allowEmptyNamepaths":true,"checkSeesForNamepaths":true}}
// Message: `settings.jsdoc.allowEmptyNamepaths` has been removed, use options in the rule `valid-types` instead.
/**
* @alias module:abc#event:foo-bar
*/
function quux() {
}
// Message: Syntax error in type: module:abc#event:foo-bar
/**
* @mixes module:namespace.SomeClass~
*/
function quux() {
}
// Message: Syntax error in type: module:namespace.SomeClass~
/**
* @callback
*/
function quux() {
}
// Options: [{"allowEmptyNamepaths":false}]
// Message: Syntax error in type:
The following patterns are not considered problems:
/**
* @param {Array<string>} foo
*/
function quux() {
}
/**
* @param {string} foo
*/
function quux() {
}
/**
* @param foo
*/
function quux() {
}
/**
* @borrows foo as bar
*/
function quux() {
}
/**
* @borrows foo as #bar
*/
function quux() {
}
/**
* @see foo%
*/
function quux() {
}
/**
* @alias module:namespace.SomeClass#event:ext_anevent
*/
function quux() {
}
/**
* @callback
*/
function quux() {
}
/**
* @class
*/
function quux() {
}
/**
* @see {@link foo}
*/
function quux() {
}
/**
*
* @fires {module:namespace.SomeClass#event:ext_anevent}
*/
function quux() {
}
/**
* @memberof module:namespace.SomeClass~
*/
function quux() {
}
/**
* @memberof! module:namespace.SomeClass.
*/
function quux() {
}
/**
*
*/
function quux() {
}
TSDoc is a documentation comment format used for TypeScript source files. It is similar to JSDoc but tailored for the TypeScript language, providing a standardized way to document TypeScript APIs. Unlike eslint-plugin-jsdoc, TSDoc does not provide linting rules but focuses on the comment format itself.
The 'documentation' package is a documentation generator that uses JSDoc comments to produce documentation for JavaScript code. It is similar to eslint-plugin-jsdoc in that it processes JSDoc comments, but its primary purpose is to generate documentation rather than lint code.
TypeDoc is a documentation generator for TypeScript projects. It reads TypeScript source files and JSDoc comments to produce documentation. While eslint-plugin-jsdoc focuses on linting JSDoc comments, TypeDoc uses them to generate documentation websites or markdown files.
FAQs
JSDoc linting rules for ESLint.
The npm package eslint-plugin-jsdoc receives a total of 3,777,129 weekly downloads. As such, eslint-plugin-jsdoc popularity was classified as popular.
We found that eslint-plugin-jsdoc demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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