Folks,
This session is all about to revise about our Jquery knowledge. Let’s start from basic to advanced level. We all know that Jquery is the most popular Javascript library available open source. Let’s discuss what are the features of Jquery and what all benefits we get out of it when compared to Javascript.
Features:
Jquery is a Javascript library – Jquery is nothing but a Javascript library available, it’s like any other custom javascript written on your own .js file but with bundles of features added to it, which are ready for use, such as Event handling, DOM parsing, AJAX calls, Cross browser compatibility, Plugin ready code and many more.
Cross Browser Compatibility – With Jquery you dont need to worry about validating your client side javascript with different browsers and different versions of the browsers, because jquery code written works in all browsers without any issue. Hurray!!
Selectors – Jquery provides various selectors to access your HTML elements in different ways efficiently. Developer can easily point to a class / ID on a HTML with Jquery and start manipulating it on fly.. For example., User can easily selector an nth Span tag of the First div, first child of a node, all paragraphs under a div etc.
Handle Events - You dont need to write bundles of code to handle mouse events, keyboard events in javascript, everything is ready to you, just to apply on your HTML DOM with the beautiful handling events in Jquery such as onclick, on blur, onchange, on foucs, mouse in, mouse out etc and provide lot of information including the X and Y co-ordinates where the user clicked etc, which makes our lifes easier.
Animations – Wonderful feature in Jquery, you can do all kind of basic animations on your HTML elements, can play around with height and width of divs, positions, colors to manipulate and fade effects etc. This will really bring a lot of rich look to web pages when applied on Form validations, plugins etc.
AJAX Calls – Jquery allows easy access to AJAX calls to populate different kinds of data on to the HTML without refreshing the entire page, provides different ways to load data from JSON, XML data on fly and gives the user a nice impression of the web page, which works so great for example, Loading news feeds from JSON, refreshing temperature automatically after few sec etc.
Various Plugins available – In addition to the existing features and continuous updates to the Jquery codebase, there are 1000′s of free plugins available for web developers to just extend the jquery code and implement more functionality such as simple table can be extended to a sortable data grid etc.
These are some of the highlights of Jquery. Hope you guys got a quick sneak peek of Jquery features. Let’s start with this basic level and learn more stuff in upcoming lessons.
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