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    What is jQuery

    Introduction

    jQuery is a rapid, portable, and feature-rich JavaScript library built on the “write less, do more” principle. It’s simple APIs make things like HTML document routing process and modification, event handling, and adding visual effects to a web page much easier, and it works throughout all major browsers such as Chrome, Firefox, Safari, Internet Explorer, and others.

    jQuery also allows you to quickly as well as quickly build an Ajax-based application. Google, Microsoft, and IBM use jQuery in their applications. As a result, it is easy to see how popular and powerful jQuery is.

    jQuery was generated in early 2006 by John Resig. As such an open-source project, the jQuery project is currently perform and managed by a distributed team of developers.

    jQuery Important Features

    • DOM Selection:Selectors in jQuery are used to extract DOM elements based on various criteria such as tag name, id, CSS class name, attribute name, value, nth child in power structure, and so on.
    • DOM Manipulation:DOM features could be manipulated utilizing numerous jQuery functions. For example, addition or removing elements, changing HTML content, CSS classes, and so on.
    • Special Effects:You can implement special effects to DOM elements such as showing or hiding elements, disappearing in and out of accessibility, sliding effects, visual effects, and so on.
    • Events:The jQuery library contains operations that correspond to DOM events such as click, dblclick, mouseenter, mouseleave, blur, keyup, keydown, and so on. These functions manage cross-browser difficulties automatically.
    • Ajax:jQuery furthermore includes simple AJAX functions for loading the data from web server without restarting the entire page.
    • Cross-browser support:The jQuery library manages cross-browser problems instantly, so the user does not need to complain about it. jQuery is compatible with Internet Explorer 6.0+, Firefox 2.0+, Safari 3.0+, Chrome, and Opera 9.0+.

    Advantages of jQuery

    • Save lots of time —

      Users will save a large amount of time and effort by utilizing the built-in jQuery impacts and selectors and focusing on other development tasks.

    • Simplify common JavaScript tasks —

      jQuery simplify common JavaScript activities. Users can already easily create feature-rich and engaging web addresses with too few lines of code; for example, using Ajax to update a page’s content without refreshing it.

    • Easy to use —

      jQuery is extremely simple to use. Anyone with a basic understanding of HTML, CSS, and JavaScript can begin developing with jQuery.

    • Compatible with browsers —

      jQuery was designed with modern browsers in mind, and it is compatible with all major modern browsers, including Chrome, Firefox, Safari, and Internet Explorer.

    • Absolutely Free —

      The best part is that it is entirely free to download and use.

    Use of jQuery

    Some of the main uses of jQuery explained in detail are as below:

    1. Plugins

      A plug-in is a piece of code written in JavaScript. These files contain useful jQuery techniques that can be used in combination with jQuery library techniques. There are numerous plugins available on the web which make generating special effects simple and quick for web developers.

    2. DOM Manipulation

      Using a cross-browser open – sourced selector engine called Sizzle, jQuery made it simple to select DOM elements, negotiate them, and reconfigure them.

    3. Animations and AJAX support

      jQuery includes a wide variety of animation effects. It also aids in the development of a responsive and feature-rich site using AJAX technology. As a result, most web developers prefer to be using jQuery to make web pages more interesting, engaging, fresher, and user-friendly.

    4. Cross-browser support

      Currently, its most widely known JavaScript library which works on all browsers is jQuery. CSS3 selectors and basic X Path syntax are also supported.

    5. Write Less, Do More

      JQuery encloses a number of common activities that necessitate a large amount of JavaScript code into techniques that can be call with such a single line of programming. This means that five lines of jQuery code are equivalent to 25 lines of traditional JavaScript code. This results in smaller files and faster web page loading.

    6. Ease of learning

      JQuery does not require any specific prerequisites to start understanding and is very simple to use due to its shorter code than JavaScript. With simple coding standards and syntax, the time required to develop and deploy a website can be significantly reduced. Furthermore, developers do not need to be designers or learn web design because jQuery comes with a wide range of built-in plugins.

    7. Search engine optimized

      Some jQuery implications are nearly identical to Flash, but all jQuery content is set up as text. This makes jQuery smaller than Flash and ensures that all search engine bots can read the content.

    8. Easy integration with Visual Studio IDE

      Visual Studio includes extensions that aid in the connectivity of jQuery libraries into.Net conceptual model projects. The Visual Studio 2010 version supports the integration of JQuery libraries into the.Net framework. Visual Studio’s NuGet package extension aids in this integration. The IntelliSense feature of Visual Studio is enabled as a result of this integration. This feature auto-populates all jQuery methods and displays errors where the syntax is incorrect.

    9. Even when JavaScript is disabled, a jQuery element has still displayed

      Some browsers required the installation of Adobe Flash Player in order to properly render all content. This is not true of jQuery. Manipulation of HTML DOM is now common practice for creating and reconfiguring web pages. Content will be rendered even if JavaScript is disabled in the browser.

    10. jQuery makes flash like animated applications

      Because learning Flash takes time and years of experience, employing Flash programmers is not a cheap task. To create animations using jQuery, you only need understanding of JavaScript and HTML. There are also a lot of great plugins available to make this challenge even easier.

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