Skip to main content

How to defer loading of javascript efficiently using the Google way?

If there is a piece of code that is intended to be loaded after a webpage finishes loading, one efficient method as recommended by Google is to use listeners. An article on feedthebot illustrates the Google's method. The following code should be placed in your HTML just before the </body> tag. Also, all code blocks supposed to be delayed are to be placed in an external js file (defer.js in this case).

<script type="text/javascript">
function downloadJSAtOnload() {
    var element = document.createElement("script");
    element.src = "defer.js";
    document.body.appendChild(element);
}

if (window.addEventListener)
    window.addEventListener("load", downloadJSAtOnload, false);
else if (window.attachEvent)
    window.attachEvent("onload", downloadJSAtOnload);
else
    window.onload = downloadJSAtOnload;
</script>
Labels:

Popular Posts

Ho Ching named 5th most powerful and is mistaken as first lady by Forbes

Forbes named Singapore Prime Minister wife and CEO of Temasek Holdings, Ho Ching, as the 5th most powerful woman in the world. Ho Ching is mistaken as Singapore's first lady! OMG!

I wonder how can Forbes makes such a blunder. For a complete list, refer to here.
Read more

How to stop FortiClient from starting automatically?

Installed FortiClient recently but the challenge in disabling the application/service from running automatically on every start-up annoyed me. Attempt to stop 'FortiClient Service Scheduler' only return 'Parameter is incorrect' error message.

An article on Technet help solve my trouble. To stop FortiClient from starting automatically, try the following:
Shut down FortiClient from the system tray.
Run net stop fortishield on command prompt.
Run msconfig.
On msconfig, switch to the Services tab. Clear the FortiClient Service Scheduler check box and click Apply.Run services.msc on command prompt to open up show all available services.Look for FortiClient Service Scheduler. Switch Startup type to Manual.Restart your computer. FortiClient should not be running automatically the next time round. Hope it helps.
Read more

President Elect Dr Tony Tan post election interview

I feel Dr Tony Tan can handle the reporters quite well.

Read more