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is-it-type
Advanced tools
Changelog
5.1.2
Bug fixes:
package.json
file in ESM dirs to NPMReadme
All the functions from core-util-is plus a few extras, in both CJS and ESM formats for use in Node.js or browser.
const { isString } = require('is-it-type');
or:
import { isString } from 'is-it-type';
isString('abc'); // true
All methods return true
or false
.
isArray
isBoolean
isNull
isNullOrUndefined
isNumber
isString
isSymbol
isUndefined
isRegExp
isDate
isError
isFunction
isPrimitive
NB core-util-is's isBuffer
is not included. isObject
method differs from core-util-is's method of same name (see below).
isEmptyString
- true
if === ''
isFullString
- true
if a string which !== ''
isInteger
- true
if is an integer number (positive, negative or zero)isPositiveInteger
- true
if is an integer number > 0isPositiveIntegerOrZero
- true
if is an integer number >= 0isNegativeInteger
- true
if is an integer number < 0isNegativeIntegerOrZero
- true
if is an integer number <= 0isObject
- true
if passed object (not including arrays, regexps and other built-ins)isEmptyObject
- true
if passed object with no propertiesisType( type, input )
- true
if typeof input === type
This module follows semver. Breaking changes will only be made in major version updates.
All active NodeJS release lines are supported (v12+ at time of writing). After a release line of NodeJS reaches end of life according to Node's LTS schedule, support for that version of Node may be dropped at any time, and this will not be considered a breaking change. Dropping support for a Node version will be made in a minor version update (e.g. 1.2.0 to 1.3.0). If you are using a Node version which is approaching end of life, pin your dependency of this module to patch updates only using tilde (~
) e.g. ~1.2.3
to avoid breakages.
Use npm test
to run the tests. Use npm run cover
to check coverage.
See changelog.md
If you discover a bug, please raise an issue on Github. https://github.com/overlookmotel/is-it-type/issues
Pull requests are very welcome. Please:
FAQs
Determine type of a variable
The npm package is-it-type receives a total of 16,530 weekly downloads. As such, is-it-type popularity was classified as popular.
We found that is-it-type demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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