Compare two multidimensional arrays in javascript

Question

I have two arrays:

var array_old = [{id:\"5436\", title:\"I Like you boy\"}, {id:\"5437\", title:\"Hello how are you\"}];
var array_new = [{id:\"5436\", title:\"         


        

Answer 1

http://jsfiddle.net/tppiotrowski/VHb3Q/2/

var array_old = [{
    id: "5436",
    title: "I Like you boy"},
{
    id: "5437",
    title: "Hello how are you"}];
var array_new = [{
    id: "5436",
    title: "I Like you boy"},
{
    id: "1132",
    title: "I'm fine"}];

$.each(array_old, function(old_index, old_obj) {
    var old_id = old_obj['id'];
    var found = false;
    $.each(array_new, function(new_index, new_obj) {
        if (new_obj['id'] == old_id) {
            found = true;
        }
    });
    if (!found) {
        alert(old_id + " does not exist in array_new");
    }
});​