What is jQuery and why it is used? jQuery is a lightweight, "write less, do more", JavaScript library. The purpose of jQuery is to make it much easier to use JavaScript on your website. jQuery takes a lot of common tasks that require many lines of JavaScript code to accomplish, and wraps them into methods that you can call with a single line of code. Is jQuery dead? jQuery has seen a significant decline in popularity over the past few years. With the rise of frontend JavaScript frameworks like Angular, Vue and React, jQuery's quirky syntax and often-overwrought implementation has taken a backseat to this new wave of web technology. ... jQuery may be outdated but jQuery is not dead Is jQuery better than JavaScript? Though JavaScript is the basic language from which jQuery has evolved, jQuery makes event handling, DOM manipulation, Ajax calls much easier than JavaScript. jQuery also allows us to add animated effects on our web page which takes a lot of pain and lines of code with JavaScript Is jQuery still used in 2020? Even though it is obvious that the library is gradually losing its grounds, it is still relevant. A lot of websites make use of it. According to BuiltWith, JQuery is still in use on a staggering 77% percent of the top 1 million websites. What is jQuery syntax? The jQuery syntax is tailor-made for selecting HTML elements and performing some action on the element(s). Basic syntax is: $(selector).action() A $ sign to define/access jQuery. A (selector) to "query (or find)" HTML elements. A jQuery action() to be performed on the element(s) Is jQuery a tool? jQuery Tools is a collection of the most important user interface components for the web. These are tabs, accordions, tooltips, overlays, exposing effects and scrollables. ... jQuery Tools are built exactly for that purpose. It is recommended that you start designing your pages without using any JavaScript.