var a = [10, 20, 100, 60, 5, 90]; //sorting Ascending a.sort(function (a, b) { return a - b } ); for (var i = 0; i < a.length; i++) { console.log(a[i]); } //sorting Descending var x = a; x.sort(function (a, b) { return b - a } ); for (var i = 0; i < x.length; i++) { console.log(x[i]); }