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var stringPrototypeEndswith = require("string.prototype.endswith")

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string.prototype.endswith v1.0.0

A robust & optimized `String.prototype.endsWith` polyfill, based on the ECMAScript 6 specification.

ES6 String.prototype.endsWith polyfill Build status

A robust & optimized polyfill for the String.prototype.endsWith method 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.endsWith are available:


Via npm:

npm install string.prototype.endswith

Then, in Node.js:

var endsWith = require('string.prototype.endswith');
<script src=""></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 will lead to duplicated code.


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


Mathias Bynens


This polyfill is available under the MIT license.

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