array-find-index
ES2015 `Array#findIndex()` ponyfill
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.
A tiny, faster alternative to native Array.prototype.findIndex
ES6 shims that use native implementation if available
ES6 shims that use native implementation if available
## Usage
Get index of first value in iterable that satisfies the test, like Array.findIndex().
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.