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string.prototype.includes (2.0.1)

Published 2026-02-24 14:05:37 +00:00 by atheaadmin

Installation

Setup this registry in your project .npmrc file:

registry=

To install the package using npm, run the following command:

npm install string.prototype.includes@2.0.1

or add it to the package.json file:

"string.prototype.includes": "2.0.1"

For more information on the npm registry, see the documentation.

About this package

ES6 String.prototype.includes polyfill

A robust & optimized polyfill for the String.prototype.includes method (previously known as String.prototype.contains) in ECMAScript 6.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.

Other polyfills for String.prototype.includes are available:

• https://github.com/paulmillr/es6-shim/blob/d8c4ec246a15e7df55da60b7f9b745af84ca9021/es6-shim.js#L186-L190 by Paul Miller (fails some tests passes all tests)
• https://github.com/google/traceur-compiler/blob/315bdad05d41de46d25337422d66686d63100d7a/src/runtime/polyfills/String.js#L68-L86 by Google (fails a lot of tests now uses this polyfill and passes all tests)

Installation

Via npm:

npm install string.prototype.includes

Then, in Node.js:

var includes = require('string.prototype.includes');

In a browser:

<script src="https://bundle.run/string.prototype.includes"></script>

Note

: It's recommended that you install this module using a package manager such as npm, because loading multiple polyfills from a CDN (such as bundle.run) will lead to duplicated code.

Notes

Polyfills + test suites for String.prototype.startsWith and String.prototype.endsWith are available, too.

Author

Mathias Bynens

License

This polyfill is available under the MIT license.

Dependencies

Dependencies

ID	Version
call-bind	^1.0.7
define-properties	^1.2.1
es-abstract	^1.23.3

Development Dependencies

ID	Version
@es-shims/api	^2.5.1
@ljharb/eslint-config	^21.1.1
eslint	=8.8.0
functions-have-names	^1.2.3
istanbul	^0.4.5
mock-property	^1.1.0
tape	^5.9.0

Keywords

string includes es6 ecmascript polyfill

Details

npm

2026-02-24 14:05:37 +00:00

1

Mathias Bynens

Project Site

MIT

latest

5.4 KiB

Assets (1)

string.prototype.includes-2.0.1.tgz 5.4 KiB

Versions (1) View all

2.0.1 2026-02-24