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json-superstring
Advanced tools
The native JSON.stringify()
method is quite fast, but it lacks safety checks for things like circular references and enumerable getter properties that throw errors. The json-superstring
module wraps JSON.stringify()
, and includes safety checks for these potential issues.
Add json-superstring
as a dependency in package.json
:
$ npm install json-superstring -S
Then simply call json-superstring
...
const jsonSuperstring = require('json-superstring');
const data = {
foo: {
a: '1',
b: 2
}
};
data.foo.bar = data.foo;
console.log(jsonSuperstring(data));
// {"foo":{"a":"1","b":2,"bar":"[Circular]"}}
jsonSuperstring(data [, space])
: stringifies a value in the same manner as JSON.stringify()
, but prevents circular reference errors.
Parameters
data
: (required) the data to stringify.
space
: (optional) a String
or Number
object that's used to insert white space into the output JSON string for readability purposes. If this is a Number
, it indicates the number of space characters to use as white space; this number is capped at 10 (if it is greater, the value is just 10). Values less than 1 indicate that no space should be used. If this is a String
, the string (or the first 10 characters of the string, if it's longer than that) is used as white space. If this parameter is not provided (or is null
), no white space is used.
There are a number of other safe JSON stringifiers out there, and they all provide some variation of performance and features. The goals of this project are:
Best in class performance.
Safety checks for both circular references and getter properties that errors.
No side effects. Objects passed to json-stringify
are not modified.
Provide ability to specify space param, consistent with JSON.stringify()
's functionality.
Provide ability to merge multiple objects together and stringify.
Name | Performance | White Space | Circular Check | Error Check | No Side Effects |
---|---|---|---|---|---|
json-superstring | #1 | ā | ā | ā | ā |
fast-safe-stringify | #4 | ā | ā | ā | ā |
json-stringify-safe | #3 | ā | ā[*] | ā | ā |
safe-json-stringify | #2 | ā | ā[*][**] | ā | ā |
[*] Does not check for circular references when calling an object's toJSON()
method.
[**] While safe-json-stringify
performs circular reference checks, it marks all duplicate object references in a JSON object as [Circular]
regardless if whether or not they are actual circular references.
The json-stringify
module is very fast compared to other safe JSON stringifiers.
āāāāāāāāāāāāāāāāāāāāāāā¬āāāāāāāāāāāāā¬āāāāāāāāāāāāā¬āāāāāāāāāāāāā
ā NAME ā AVG ā MIN ā MAX ā
āāāāāāāāāāāāāāāāāāāāāāāŖāāāāāāāāāāāāāŖāāāāāāāāāāāāāŖāāāāāāāāāāāāā”
ā json-superstring ā 6766 ns ā 5096 ns ā 630665 ns ā
āāāāāāāāāāāāāāāāāāāāāāā¼āāāāāāāāāāāāā¼āāāāāāāāāāāāā¼āāāāāāāāāāāāā¤
ā fast-safe-stringify ā 9094 ns ā 6922 ns ā 1511836 ns ā
āāāāāāāāāāāāāāāāāāāāāāā¼āāāāāāāāāāāāā¼āāāāāāāāāāāāā¼āāāāāāāāāāāāā¤
ā json-stringify-safe ā 8738 ns ā 6295 ns ā 1755434 ns ā
āāāāāāāāāāāāāāāāāāāāāāā¼āāāāāāāāāāāāā¼āāāāāāāāāāāāā¼āāāāāāāāāāāāā¤
ā safe-json-stringify ā 6807 ns ā 4546 ns ā 4177514 ns ā
āāāāāāāāāāāāāāāāāāāāāāā“āāāāāāāāāāāāā“āāāāāāāāāāāāā“āāāāāāāāāāāāā
2.0.0
FAQs
Fast, safe JSON stringification.
The npm package json-superstring receives a total of 6 weekly downloads. As such, json-superstring popularity was classified as not popular.
We found that json-superstring demonstrated a not healthy version release cadence and project activity because the last version was released a year ago.Ā It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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