What is JQuery?
jQuery is a fast and concise JavaScript Library created by John Resig in 2006 with a nice motto − Write less, do more.
jQuery simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development.
jQuery Features:
- DOM manipulation − The jQuery made it easy to select DOM elements, traverse them and modifying their content by using cross-browser open source selector engine called Sizzle.
- Event handling − The jQuery offers an elegant way to capture a wide variety of events, such as a user clicking on a link, without the need to clutter the HTML code itself with event handlers.
- AJAX Support − The jQuery helps you a lot to develop a responsive and feature-rich site using AJAX technology.
- Animations − The jQuery comes with plenty of built-in animation effects which you can use in your websites.
- Lightweight − The jQuery is very lightweight library – about 19KB in size ( Minified and gzipped ).
- Cross Browser Support − The jQuery has cross-browser support, and works well in IE 6.0+, FF 2.0+, Safari 3.0+, Chrome and Opera 9.0+
- Latest Technology − The jQuery supports CSS3 selectors and basic XPath syntax.
Why Use JQuery?
1. jQuery promotes simplicity
2. jQuery elements display even when JavaScript is disabled
3. jQuery easily integrates with the Visual Studio IDE
4. jQuery makes animated applications just like Flash
5. jQuery pages load faster
6. jQuery can be SEO friendly
Advantages And Disadvantages Of JQuery
Advantages
- Ease of useThis is pretty much the main advantage of using JQuery, it is a lot more easy to use compared to standard javascript and other javascript libraries. Apart from simple syntax, it also requires much less lines of code to achieve the same feature in comparison.
- Large libraryJQuery enables you to perform hordes of functions in comparison to other Javascript libraries.
- Strong opensource community. (Several jQuery plugins available)JQuery, while relatively new, has a following that religiously devote their time to develop and enhance the functionality of JQuery. Thus there are hundreds of prewritten plugins available for download to instantly speed up your development process. Another advantage behind this is the efficiency and security of the script.
- Great documentation and tutorialsThe JQuery website has a comprehensive documentation and tutorials to get even an absolute beginner in programming to get the ball rolling with this library.
- Ajax supportJQuery lets you develop Ajax templates with ease, Ajax enables a sleeker interface where actions can be performed on pages without requiring the entire page to be reloaded. A pretty but simple example of this can be seen above the fold on HowToRefinanceYourMortgage.net.
Disadvantages
- Functionality maybe limitedWhile JQuery has an impressive library in terms of quantity, depending on how much customization you require on your website, functionality maybe limited thus using raw javascript maybe inevitable in some cases.
- JQuery javascript file requiredThe JQuery javascript file is required to run JQuery commands, while the size of this file is relatively small (25-100KB depending on server), it is still a strain on the client computer and maybe your web server as well if you intend to host the JQuery script on your own web server.
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