Why is jQuery Set Out to be So Dominant?

jQuery is a JavaScript library of pre-written JavaScript code that can be used in your own coding projects. A jQuery plugin is simply a new method that we use to extend jQuery's prototype object. This is basically the theme of jQuery plugins. A very simplified explanation would be each plugin is a function, that if applied to an element (or elements) do some transformation to it. You don't need to worry about the inner workings or implementation, everything just works.
By extending the prototype object you enable all jQuery objects to inherit any methods that you add. They’re constantly churning out amazingly useful and completely free tools that they share with anyone and everyone who wants to use them.

Difference Between JavaScript and jQuery?

JavaScript and jQuery are mentioned so interchangeably, it can be confusing to separate the two. Just remember: JavaScript is a standalone programming language, while jQuery is a collection of JavaScript code (not its own language).

Why jQuery is so Popular-

• Aside from being a joy to use, one of the biggest benefits of jQuery is that it handles a lot of infuriating cross-browser issues for you. Anyone who has written serious JavaScript in the past can attest that cross-browser inconsistencies will drive you mad. jQuery set out to make DOM manipulation easier to use, and had a single minded focus on achieving that goal.

• jQuery has very good documentation, in addition there is a great number of tutorials on the web demonstrating jQuery usage. If you encounter a problem, you can ask a question on any web development forum and there will be a large development community waiting to help you.

• One need professionally designed and easy to learn tutorials to script in Java and jQuery makes this possible. With a host of plugins to make it fun for end users regardless of whether one is a novice, you are just a step away from designing a webpage. As a result, there isn’t any need to tons of books to get start with syntax language.

Conclusion-

Despite its decline in terms of appeal, usage and popularity, jQuery is indeed still heavily used and might still be important in the next years. It evolved a not-to-be-sniffed at plugin community and immense mind-share. It became the de facto client-side Javascript library for years.