var startTime = new Date(); // do some processing var endTime = new Date(); var timeDiff = endTime.getTime() - startTime.getTime();
After some tweaking, I found out that if I create HTML on a temporary variable and do a single
innerHTML call at the end is significantly faster than calling
innerHTML on every little piece of HTML code that I want to add. This simple change improved my code from 1800 ms to 25 ms, what a big difference!