Lara Kannan

In this post, I will show you the different ways using which you can reload or refresh the webpage using jQuery. The first method is nothing to do with jQuery. It is a HTML tag which you need to put in the head section of your page and your page will get refreshed automatically after specified interval.

<meta http-equiv="refresh" content="10">

The meta tag with "http-equiv" is used to refresh the page. This attribute tells the browser that this meta tag is sending an HTTP command rather than a standard meta tag.

Refresh is an actual HTTP header used by the web server.The content attribute in the tag is having value in seconds. As per the above code, it is set to 10, which means after 10 seconds your page will get refreshed or reloaded.

You can also use jQuery to refresh/reload the page automatically. See below jQuery code.

function ReloadPage() { 
   location.reload();
};
 
$(document).ready(function() {
  setTimeout("ReloadPage()", 10000); .
});

location.reload() will reload the page again. The advantage of location.reload() is that it works with all the major browsers.

If you want to reload the page on click of button, then you can call location.reload() on button click event. See below jQuery code.

$(document).ready(function() {
     $('#btnReload').click(function() {
             location.reload();
       });
}); 

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Hope this post will help you!

jQuery supports a large subset of selectors defined by the CSS3 Selectors draft standard. Additionally it also contains some very useful pseudo classes (similar to :first-child, :hover etc).

Due to its extensible framework, the best part is that jQuery lets you create and define your own custom selectors with ease. A full list of jQuery selectors is available on the jQuery site.

In this article, we will learn how to create our own custom selector that identifies all the mailto: links on a page. Let us see some code first:


As you can observe, we have extended jQuery’s selector expressions under the jQuery.expr[':'] object. To learn more about this, visit the jQuery hot Selector engine called sizzle. We have defined a custom selector called :mailToLink to which we are passing an object, which is a collection of links. This selector looks for all anchor elements that contains an href attribute matching mailto.

That’s it. Our selector :mailToLink is ready and here’s how we can use it:

To test this selector, we have used some hyperlinks, out of which one of them is a mailto: link. When you click the button, we use our custom selector to indentify the :mailto link and set it’s color to red.

As you can see, we have extended jQuery’s expression engine with ease!

The entire source code of this article can be downloaded over here. I hope you liked the article and I thank you for viewing it.

Source: www.dotnetcurry.com

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A layout engine a.k.a web browser engine or browser rendering engine is a component that parses HTML, XML, CSS, Images etc. and renders it on the screen.

A browser developer tool lets you inspect, debug, analyze and diagnose issues with CSS, HTML, Scripts etc. inside your browser.

As a web developer, you must know what layout engines and developer tools your browser uses.

It helps to understand browser rendering and resolve issues when you are developing cross browser apps. Here’s a list of some popular browser developer tools and the layout engines for your reference.

Browseer Name	Layout Engine	Developer Tools
Chrome	WebKit	Google Chrome Inspector
FireFox	Gecko	Firebug
Internet Explorer and WP 7	Trident	IE Developer Tools
Konqueror	KHTML	KIO
Opera (desktop and mobile)	Presto	Opera DragonFly
Safari (desktop and mobile)	WebKit	Web Inspector

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Hope this information will help you updated!!!!