TypeScript vs JSX

I will try to give you a brief answer. In my experience, something great about TSX is that it will avoid some errors immediately, it has static typing, it is easy to maintain and you can use OPP (Yes, similar to Java). JSX is very similar to JS, you don't have to define the type of data (dynamically typed), a lot of freedom and easy to understand.

The original answer is insufficient and not up to date with the current standards.

JSX is NOT a language. It's NOTHING BUT Javascript but with a different extension. Facebook came up with this new extension so that they can demarcate the XML-like implementation of HTML in JavaScript. In early versions of React, this extension was mandatory for writing HTML inside JavaScript. However, this restriction was removed a few years ago which basically meant that there is no difference at all in JS and JSX. (Using only .js extension is the standard norm nowadays BTW)

Coming to TypeScript, it is a SUPERSET of JavaScript which adds extra functionalities to plain JavaScript making the applications more robust. Watch this video for better understanding of TypeScript: https://channel9.msdn.com/posts/Anders-Hejlsberg-Introducing-TypeScript

To conclude, JSX = JS, typescript is a superset of Javascript, and there is no comparison between JSX and TypeScript.