ES6
Arrayponyfills
Ponyfill: A polyfill that doesn't overwrite the native method
$ npm install ponyfill-array --save
[4, 6, 7, 12].find(isPrime);
//=> 7[4, 6, 7, 12].findIndex(isPrime);
//=> 2[4, 6, 7, 12].reduce(function(a, b) {
return a + b;
}, 1);
//=> 30MIT © Colin Milhench