Simple ES6 Array.prototype.findIndex polyfill for older environments taken from es6-shim.
For browsers and node.js.
- Just include repo before your scripts.
npm install array.prototype.findindexif you’re using node.js.component install paulmillr/Array.prototype.findIndexif you’re using component(1).bower install Array.prototype.findIndexif you’re using Twitter Bower.
Array.prototype.findIndex(predicate[, thisArg])returns first item index that matchespredicatefunction.predicate(value, index, collection): takes three argumentsvalue: current collection elementindex: current collection element indexcollection: the collection
var findIndex = require('array.prototype.findindex');
findIndex.shim(); // if you want to install it on the global environmentCode example:
// Default:
[1, 5, 10, 15].findIndex(function(a) {return a > 9;}) // 2The MIT License (MIT)
Copyright (c) 2013 Paul Miller http://paulmillr.com
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
