Question

$(function(){


var x = new Array("a", "b", "c", "d", "e");
var y = new Array("a", "b", "3", "d", "e");
var str = "";

for (var i = 0; i < x.length; i++) {
    for (var j = 0; j < y.length; j++) {
        if (x[i] == y[j]) {
            break;
        } else {
            //Check if reach the last element in the array 2
            //If yes, then display that element in array 1 b/c not in array 2

              if (y[j] == y.length - 1) {
                str += x[i];
            }
        }
    }
}

console.log(x[i]);



});

x[i] is returning undefined which should actually display the different value the is not found in both compared arrays. How do i get the value from x[i]? What am i doing wrong?

Answer 1

Change if (y[j] == y.length - 1) to if (j == y.length - 1) so that you are doing a check on the current iterator position instead of y array value.

And change console.log(x[i]); to console.log(str); so that you output the str variable you set in the loop