https://github.com/es-shims/array.prototype.join
ES spec-compliant `Array.prototype.join` shim/polyfill/replacement that works as far down as ES3
https://github.com/es-shims/array.prototype.join
array ecmascript es-shims javascript join polyfill shim
Last synced: 3 months ago
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ES spec-compliant `Array.prototype.join` shim/polyfill/replacement that works as far down as ES3
- Host: GitHub
- URL: https://github.com/es-shims/array.prototype.join
- Owner: es-shims
- License: mit
- Created: 2022-05-25T21:04:47.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2024-12-11T22:12:40.000Z (6 months ago)
- Last Synced: 2025-03-04T01:34:13.203Z (3 months ago)
- Topics: array, ecmascript, es-shims, javascript, join, polyfill, shim
- Language: JavaScript
- Homepage:
- Size: 55.7 KB
- Stars: 0
- Watchers: 4
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Funding: .github/FUNDING.yml
- License: LICENSE
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README
# array.prototype.join [![Version Badge][npm-version-svg]][package-url]
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[![License][license-image]][license-url]
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[![npm badge][npm-badge-png]][package-url]
An ES spec-compliant `Array.prototype.join` shim/polyfill/replacement that works as far down as ES3.
This package implements the [es-shim API](https://github.com/es-shims/api) interface. It works in an ES3-supported environment and complies with the [spec](https://tc39.es/ecma262/#sec-array.prototype.concat).
Because `Array.prototype.join` depends on a receiver (the “this” value), the main export takes the array to operate on as the first argument.
## Example
```js
var join = require('array.prototype.join');
var assert = require('assert');
var a = [1, 1, 1];
assert.deepEqual(join(a, 'x'), '1x1x1');
```
```js
var join = require('array.prototype.join');
var assert = require('assert');
/* when Array#join is not present */
delete Array.prototype.join;
var shimmed = join.shim();
assert.equal(shimmed, join.getPolyfill());
assert.equal(shimmed, Array.prototype.join);
assert.deepEqual([1, 2, 3].join('x'), join([1, 2, 3], 'x'));
```
```js
var join = require('array.prototype.join');
var assert = require('assert');
/* when Array#join is present */
var shimmed = join.shim();
assert.equal(shimmed, Array.prototype.join);
assert.deepEqual([1, 2, 3].join(), join([1, 2, 3]));
```
## Tests
Simply clone the repo, `npm install`, and run `npm test`
[package-url]: https://npmjs.org/package/array.prototype.join
[npm-version-svg]: https://versionbadg.es/es-shims/Array.prototype.join.svg
[deps-svg]: https://david-dm.org/es-shims/Array.prototype.join.svg
[deps-url]: https://david-dm.org/es-shims/Array.prototype.join
[dev-deps-svg]: https://david-dm.org/es-shims/Array.prototype.join/dev-status.svg
[dev-deps-url]: https://david-dm.org/es-shims/Array.prototype.join#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/array.prototype.join.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/array.prototype.join.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/array.prototype.join.svg
[downloads-url]: https://npm-stat.com/charts.html?package=array.prototype.join
[codecov-image]: https://codecov.io/gh/es-shims/Array.prototype.join/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/es-shims/Array.prototype.join/
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[actions-url]: https://github.com/es-shims/Array.prototype.join/actions