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

I found a way myself, but I don't know if this is the best way to do it:

var array_old = [{id: "5436",title: "I Like you boy"},{id: "5437",title: "Hello how are you"},{id: "5438",title: "Hello how are you2"}];
var array_new = [{id: "5436",title: "I Like you boy"},{id: "1132",title: "I'm fine"}];

$.each(array_old, function(id, array){

    found = 0;

    $.each(array_new, function(id2, array2) {

        if(array['id']==array2['id'])
        {
            found++;
        }

    });

    if(found==0)
    {
        alert(array['id']+' does not exist in array_new');
    }

});

http://jsfiddle.net/FAb3k/2/