Special Effects and Animation: jQuery simplifies the programming for special visual effects (such as show/hide, fade-in/fade-out, slide-in/Slide-out) and custom animation.Event Handling: jQuery also simplifies JavaScript event handling.On the other hand, selecting and manipulating DOM elements using raw JavaScript is messy and cumbersome. jQuery provides a powerful and supercharged selector function to select elements based on HTML tag-names (e.g.,, ), HTML ID attribute (e.g., #debug), and CSS class name (e.g. DOM Elements Selection and Manipulation: The "query" refers to querying and selecting DOM elements within a web document for subsequent manipulation.On the other hand, to provide cross-browser support in raw JavaScript, you need to check the browser and issue the appropriate codes, as different browsers (particularly IE) implement certain features differently.
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That is, the same jQuery code runs on the big-5 browsers (Chrome, Firefox, IE, Safari and Opera). Cross-Browser Support: jQuery provides cross-browser support.In other words, most of the developers nowadays program in jQuery, rather than raw JavaScript. Among the JavaScript libraries/frameworks, jQuery's market share is 95.2% (Ref: ). In May 2015, JQuery is used by 64.2% of all the websites. It is a small script (about 96kB minified) written in JavaScript called " jquery.js", which greatly simplifies JavaScript programming by providing cross-browser supports for DOM element selection and manipulation, event handling, Ajax request/response processing and animation.
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