JAVASCRIPT

jquery compare two arrays return difference

var array1 = [1, 2, 3, 4, 5, 6];
var array2 = [1, 2, 3, 4, 5, 6, 7, 8, 9];
var difference = [];

jQuery.grep(array2, function(el) {
        if (jQuery.inArray(el, array1) == -1) difference.push(el);
});

alert(" the difference is " + difference);​ // Changed variable name

Find The Difference Of Two Arrays With JQuery

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]