Question

How to check the number of seconds(or ms) spent inside the particular loop in javascript.
I have a sorting algo implemented in javascript , now I am using bubble sort , I want to use quick sort.
I know in terms of time efficiency Quick sort is good. But I want to calculate the real number of sec or milli sec spent inside the innermost loop.
How do I do in javascript ?

Answer 1

The simplest method is to compare by Date.

var old_time = new Date();
...
var new_time = new Date();
var seconds_passed = new_time - old_time;

By the way, why don’t you just use the built-in .sort() (https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/sort) method?