string.fromcodepoint

ES6 String.fromCodePoint polyfill

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)

Installation

In a browser:

<script src="fromcodepoint.js"></script>

Via npm:

npm install string.fromcodepoint

Then, 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');

Notes

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.

Author

Mathias Bynens

License

This polyfill is available under the MIT license.

Changelog

v0.2.0 - 2014-04-10

Fixed

• Avoid RangeErrors due to maximum call stack size #1

Commits

• Simplify tests 177fc9f
• Make the fromCodePoint property non-enumerable d635a7c
• Add a few tests d3098dc
• Avoid IE8’s broken Object.defineProperty 23ee503
• Tag the v0.2.0 release 2a010ab
• README: Explicitly request SVG badges 31b41b3
• Add some more tests dd1ca34
• README: Add link to String.prototype.codePointAt polyfill 7dc1b58
• Add test for -0 02764aa
• README: Tweak require instructions 57bc578
• README: Mention Mozilla 02c8ae5
• README: Update link to ES6 draft 579503e
• README: Update link a018a18
• README: Link to @paulmillr’s es6-shim 5034e15