Exclude array from array in jQuery

Question

I want to simply exclude some array elements from another array and get the result using js and jQuery. I find my self doing a double .each() loop...

var exclude = new Array();
exclude = [1,2,3,4];
var original = new Array();
original = [0,1,2,3,4,5,6,7,8];
var finalarray = excludearrayfunction(original, exclude); // [0,5,6,7,8]

Answer 1

jQuery .not() method

You can use the jQuery .not method to exclude items from a collection like so:

var exclude = [1,2,3,4];
var original = [0,1,2,3,4,5,6,7,8];
var result = $(original).not(exclude);

This will return us a jQuery object, to select the result as an array we can simply do:

var finalArray = result.get();
// result: 0,5,6,7,8

jsFiddle demo

Complete

var exclude = [1,2,3,4];
var original = [0,1,2,3,4,5,6,7,8];
var finalArray = $(original).not(exclude).get();

Answer 2

var exclude = [1,2,3,4];
var original = [0,1,2,3,4,5,6,7,8];
var finalarray = $.grep(original,function(el,i) {
  return !~$.inArray(el,exclude);
});

!~ is a shortcut for seeing if a value is equal to -1, and if $.inArray(el,exclude) returns -1, you know the value in the original array is not in the exclude array, so you keep it.