jQuery considerably simplifies programming with the dynamic script language, JavaScript. The entire jQuery library consists of a single JavaScript file that contains the basic functions of DOM, Ajax, events, and effects. Thus, the library is an extensive collection of program parts, which can be used to edit web project elements. It’s possible to select objects and change their appearance (color, positions, etc.), which is also possible with JavaScript, but it’s a lot more complicated.
Furthermore, with jQuery you can respond in a more targeted way to your users – thanks to the event-driven programming of site elements. Users activate defined events by clicking or by entering text and then the content or animations will be displayed to them. Also graphic effects, such as text overlays are quick and easy to insert and only require a single line of code. jQuery also simplifies working with Ajax. The library optimizes the technology that downloads in the background of the site, especially if a cross-browser interface is involved. With its help, Ajax can be quickly set up and used on various browsers – even outdated versions are covered. jQuery usually closes gaps between JavaScript implementations of separate browsers.