console.time & console.timeEnd

By  on  

The console.time and console.timeEnd methods allow developers to time any routine and get a duration in milliseconds.  Since JavaScript performance is becoming increasingly important, it's good to know basic techniques for benchmarking routines.  One of the most basic benchmarking tools is console.time with console.timeEnd.

console.time starts the time and console.timeEnd stops the timer and spits out the duration:

// Kick off the timer
console.time('testForEach');

// (Do some testing of a forEach, for example)

// End the timer, get the elapsed time
console.timeEnd('testForEach');

// 4522.303ms (or whatever time elapsed)

Passing a timer name as the first argument allows you to manage concurrent timers.  The console.timeEnd call immediately spits out the elapsed time in milliseconds.

There are more advanced techniques for performance testing and benchmarking but console.time/timeEnd provide a quick manual method for speed testing!

Recent Features

Incredible Demos

  • By
    MooTools Zebra Table Plugin

    I released my first MooTools class over a year ago. It was a really minimalistic approach to zebra tables and a great first class to write. I took some time to update and improve the class. The XHTML You may have as many tables as...

  • By
    Fx.Rotate:  Animated Element Rotation with MooTools

    I was recently perusing the MooTools Forge and I saw a neat little plugin that allows for static element rotation: Fx.Rotate. Fx.Rotate is an extension of MooTools' native Fx class and rotates the element via CSS within each A-grade browser it...

Discussion

  1. no necessary label, the default label is default

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!