array.find

Array.prototype.find polyfill for ES5 versions and lower.

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array.find
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Readme

Lightweight Array.prototype.find polyfill
Build Status Coverage Status Maintainability Size npm version
The find() method returns the value of the first element in the array that satisfies the provided testing function. Otherwise undefined is returned.

How It Works

1. Download Latest version or install with bower bower install array.find
2. Include polyfill on your web-page
<script src="dist/array-find-polyfill.min.js"></script>
3. Use as native method
["apple", "banana", "peach"].find(function(item) {
    return item === "banana";
});
// "banana"

Performance

Testing in Chrome 61.0.3163 / Mac OS X 10.13.0
Native 400,642 Ops/sec
Polyfill 2,240,624 Ops/sec
See https://jsperf.com/array-prototype-find-polyfill

Links

Specification on "Ecma International"
MDN examples

Copyright and license

Code and documentation copyright 2017 Vladimir Belov. Code released under the MIT license.