Understanding jQLite or jQuery Lite

29 Dec 2023
Intermediate
23.1K Views
3 min read  

jQLite is a subset of jQuery that is built directly into AngularJS. jQLite provides you all the useful features of jQuery. In fact it provides you limited features or functions of jQuery. For a comprehensive understanding of jQLite and its functionalities within AngularJS, consider exploring an Angular Online Training.

By default AngularJS use jQLite which is the subset of jQuery. If you want to use jQuery then simply load the jQuery library before loading the AngularJS. By doing so, Angular will skip jQLite and will started to use jQuery library.

Here is a table of supported jQuery methods by jQLite.

jQuery Method
Limitation, if any
addClass()
after()
append()
attr()
bind()
Does not support namespace, selectors and eventData
children
Does not support selectors
clone()
contents()
css()
data()
detach()
empty()
eq()
find()
Limited to lookups by tag name
hasClass()
html()
text()
Does not support selectors
on()
Does not support namespace, selectors and eventData
off()
Does not support namespace, selectors
one()
Does not support namespace, selectors
parent()
Does not support selectors
prepend()
prop
ready()
remove
removeAttr()
removeClass()
removeData()
replaceWith()
toggleClass()
triggerHandler()
Passes a dummy event object to handlers
unbind()
Does not support namespace
val()
wrap()

Accessing jQLite or jQuery with AngularJS

jQuery lite or the full jQuery library if available, can be accessed via the AngularJS code by using the element() function in AngularJS. Basically, angular.element() is an alias for the jQuery function i.e.

angular.element() === jQuery() === $()
<html>
<head>
 <script src="lib/angular.js"></script>
 <script type="text/javascript">
 var app = angular.module('app', []);
 app.controller("mainCtrl", function ($scope, $element) {
 $scope.clickme = function () {
 var elem = angular.element(document.querySelector('#txtName'));
 console.log(elem.val())// console the value of textbox
 };
 });
 </script>
</head>
<body ng-app="app">
 <div ng-controller="mainCtrl">
 <input type="text" id="txtName" value="Shailendra Chauhan" />
 <button type="button" ng-click="clickme()">Click me</button>
 </div>
</body>
</html>
What do you think?

I hope you will enjoy the jQlite with AngularJS while developing your app with AngularJS. I would like to have feedback from my blog readers. Your valuable feedback, question, or comments about this article are always welcome. For those seeking a deeper understanding and practical usage of jQlite and other essential features within AngularJS, consider exploring an Angular course.

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About Author
Shailendra Chauhan (Microsoft MVP, Founder & CEO at Scholarhat by DotNetTricks)

Shailendra Chauhan is the Founder and CEO at ScholarHat by DotNetTricks which is a brand when it comes to e-Learning. He provides training and consultation over an array of technologies like Cloud, .NET, Angular, React, Node, Microservices, Containers and Mobile Apps development. He has been awarded Microsoft MVP 8th time in a row (2016-2023). He has changed many lives with his writings and unique training programs. He has a number of most sought-after books to his name which has helped job aspirants in cracking tough interviews with ease.
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