I came across this simple method using jQuery to get the difference of two arrays.

var array_one = [1,2,3,4];
var array_two = [3,4,5,6]

var difference = $(array_one).not(array_two).get();

console.log(difference);
// [1,2,5,6]

Short and Sweet!

Related External Links:

• Stack Overflow - jquery-compare-2-arrays-return-difference