Difference
Utility method to compute the difference between two arrays.
Installation
$ npm install array-difference
Usage
var array1 = [1, 2, 3];
var array2 = [2, 3, 4];
difference(array1, array2); // yeilds [1, 4]
License
Copyright (c) 2013 Mike Pennisi
Licensed under the MIT Expat license.