JSPM

ES2015 `Array#findIndex()` ponyfill

finds an item in an array matching a predicate function, and returns its index

The lodash method `_.findIndex` exported as a module.

## Usage

A tiny, faster alternative to native Array.prototype.findIndex

ES6 shims that use native implementation if available

Which receives array, (key, value) object pair and returns the index of that particular {key,value} pair in that array and also it is flexible enough to return the first index , last index and also an array of multilple indexes.

Find elements in an array-like object that satisfy a test condition.