An robust & optimized ES3-compatible polyfill for the String.fromCodePoint method in ECMAScript 6.
Other polyfills for String.fromCodePoint are available:
- http://norbertlindenberg.com/2012/05/ecmascript-supplementary-characters/#String by Norbert Lindenberg (passes all tests)
- https://gist.github.com/slevithan/2290602 by Steven Levithan (fails 8 tests)
- https://github.com/paulmillr/es6-shim/blob/771e98e789292706d2435e4e10ffbe45edf40da6/es6-shim.js#L63-L83 by Paul Miller (passes all tests)
In a browser:
<script src="fromcodepoint.js"></script>Via npm:
npm install string.fromcodepointThen, in Node.js:
require('string.fromcodepoint');
// On Windows and on Mac systems with default settings, case doesn’t matter,
// which allows you to do this instead:
require('String.fromCodePoint');A polyfill + test suite for String.prototype.codePointAt is available, too.
The tests for this repository are now used by Mozilla, to help ensure their native String.fromCodePoint implementation is correct.
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| Mathias Bynens |
This polyfill is available under the MIT license.