48 lines
1.8 KiB
Plaintext
48 lines
1.8 KiB
Plaintext
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# ES6 `String.prototype.codePointAt` polyfill [](https://travis-ci.org/mathiasbynens/String.prototype.codePointAt)
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A robust & optimized ES3-compatible polyfill for [the `String.prototype.codePointAt` method in ECMAScript 6](http://people.mozilla.org/~jorendorff/es6-draft.html#sec-string.prototype.codepointat).
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Other polyfills for `String.prototype.codePointAt` are available:
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* <http://norbertlindenberg.com/2012/05/ecmascript-supplementary-characters/#String> by [Norbert Lindenberg](http://norbertlindenberg.com/) (fails some tests)
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* <https://gist.github.com/slevithan/2290602> by [Steven Levithan](http://stevenlevithan.com/) (fails some tests)
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* <https://github.com/paulmillr/es6-shim/blob/8e570a4b425a80f9b13ff027dbd28d65f201a319/es6-shim.js#L171-L183> by [Paul Miller](http://paulmillr.com/) (~~[fails some tests](https://github.com/paulmillr/es6-shim/issues/166)~~ passes all tests)
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## Installation
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In a browser:
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```html
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<script src="codepointat.js"></script>
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```
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Via [npm](http://npmjs.org/):
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```bash
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npm install string.prototype.codepointat
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```
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Then, in [Node.js](http://nodejs.org/):
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```js
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require('string.prototype.codepointat');
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// On Windows and on Mac systems with default settings, case doesn’t matter,
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// which allows you to do this instead:
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require('String.prototype.codePointAt');
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```
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## Notes
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[A polyfill + test suite for `String.fromCodePoint`](https://mths.be/fromcodepoint) is available, too.
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## Author
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| [](https://twitter.com/mathias "Follow @mathias on Twitter") |
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| [Mathias Bynens](https://mathiasbynens.be/) |
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## License
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This polyfill is available under the [MIT](https://mths.be/mit) license.
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