Below are some of the benefits of using jQuery instead of JavaScript in ASP.net Web Application:
jQuery is well-written optimized JavaScript code, thus it will execute quicker until we create the same standard optimized JavaScript code.
jQuery is JavaScript code that is succinct, which implies that it requires the least amount of code to do the same functionality as JavaScript.
jQuery makes JavaScript development faster since much of the functionality is already provided in the library and we only need to access it.
Because jQuery supports cross-browser compatibility, we save time on supporting all browsers.