jQuery features are html/dom, and css manipulations, html event methods ,effects ,animations, ajax and utilities.
The jQuery library is free.It is lightweight.
jQuery reduces the wait time for server response.
It works anywhere. It will work on any browser, mobile phone or tablet, and even on Apple devices.
jQuery is SEO friendly and CSS3 compliant.
jQuery is very popular,widely-used and also the most extendible.
The developer can easily understand the jQuery library. It has simple syntax and coding standards.
Pages load faster:
With jQuery the web pages load very fast. Ajax calls are available abstracted for a standardized reloading of sections of a page.
Building animated applications:
jQuery can help implement content animation in a rapid and effective manner.
SEO friendly web-sites:
Impressive style effects can be introduced with jQuery, to enhance the way your web-site can be found by Google, Bing, and other search engines.