jQuery is a fast, small, and feature-rich JavaScript library. This helps to write js codes easily. This saves a ton of time.
But people don’t use it on new projects because there are more better library & you can do the same thing using vanila js. Check this out – http://youmightnotneedjquery.com/
But jQuery saves a ton of time before and helped to write better javascript. So there are many projects which use jQuery. To understand those project you should learn it.
jQuery has lots of plugins which can help you to do things easier
Bootstrap still using the jQuery
jQuery is really lightweight and it’s also hosted in google so you can use cdn in your project very easily
Easy JavaScript for Designers
It will be better if you start with other js library/frameworks instead of jQuery(use react,angular & vue logo image here)
Do you want to use jQuery in your new project ?
Other posts of this series can be found here – https://blog.nerdjfpb.com/tag/javascript/
See the codes – https://github.com/nerdjfpb/javaScript-Series