techfort/PowerArray — pull request #21 by amsul (2014-12-03 01:02:49+00:00)
Title: Updated `contains` to `includes`

The proposal for a `contains` method has been changed to `includes`. So I've updated the method for `PowerArray`s as well.

Reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes

:)