jQuery noConflict()

jQuery - The noConflict() Method

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What if you wish to use other frameworks on your pages, while still using jQuery?

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jQuery and Other JavaScript Frameworks

As you already know; jQuery uses the $ sign as a shortcut for jQuery.
There are many other popular JavaScript frameworks like: Angular, Backbone, Ember, Knockout, and more.
What if other JavaScript frameworks also use the $ sign as a shortcut?

If two different frameworks are using the same shortcut, one of them might stop working.
The jQuery team have already thought about this, and implemented the noConflict() method.

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The jQuery noConflict() Method

The noConflict() method releases the hold on the $ shortcut identifier, so that other scripts can use it.
You can of course still use jQuery, simply by writing the full name instead of the shortcut:

Example

$.noConflict();
jQuery(document).ready(function(){
    jQuery("button").click(function(){
        jQuery("p").text("jQuery is still working!");
    });
});

You can also create your own shortcut very easily. The noConflict() method returns a reference to jQuery, that you can save in a variable, for later use. Here is an example:

Example

var jq = $.noConflict();
jq(document).ready(function(){
    jq("button").click(function(){
        jq("p").text("jQuery is still working!");
    });
});

If you have a block of jQuery code which uses the $ shortcut and you do not want to change it all, you can pass the $ sign in as a parameter to the ready method. This allows you to access jQuery using $, inside this function - outside of it, you will have to use "jQuery":

Example

$.noConflict();
jQuery(document).ready(function($){
    $("button").click(function(){
        $("p").text("jQuery is still working!");
    });
});

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