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

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mathiasbynens/String.prototype.codePointAt

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ES6 String.prototype.codePointAt polyfill string.prototype.codepointat on npm

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

Installation

Via npm:

npm install string.prototype.codepointat

Then, in Node.js:

require('string.prototype.codepointat');

// On Windows and on Mac systems with default settings, case doesn’t matter,
// which allows you to do this instead:
require('String.prototype.codePointAt');

In a browser:

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

A polyfill + test suite for String.fromCodePoint is available, too.

For maintainers

How to publish a new release

  1. On the main branch, bump the version number in package.json:

    npm version patch -m 'Release v%s'

    Instead of patch, use minor or major as needed.

    Note that this produces a Git commit + tag.

  2. Push the release commit and tag:

    git push && git push --tags

    Our CI then automatically publishes the new release to npm.

Author

twitter/mathias
Mathias Bynens

License

This polyfill is available under the MIT license.