Newbie to JQuery ..
Why do we need to go for Jquery ? Or, What difference it makes on bringing JQuery instead of AJAX / Javascript ? Whether JQuery is the replacement of AJAX and Javascript ?
JQuery is useful, but what killed it was it's widespread use. Vanilla Javascript kept updating so that things that made jQuery special became things that you found in Javascript without jQuery. So, it started becoming obsolete.
“According to Builtwith, of the top 10,000 websites about 88% (or close to 9,000) of them are currently using jQuery as of the beginning of 2019.” jQuery is a well-tested library with a large community of developers who continue to contribute time and effort to modernize and improve the 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.
JavaScript = a programming language
AJAX = a method of retrieving resources asynchronously via HTTP using JavaScript
jQuery = a library (collection of functions, etc.) written in JavaScript
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