Exactly! Even though I learnt programming using Java, C and Python. Reading Eloquent JavaScript (to get into JS) reinforced concepts I learnt previously with other languages. It also helps that there is a bunch of great learning material for javascript today (freeCodeCamp, et cetera).

Also, the direct applications of JavaScript are numerous: web scrapers, node bots, front-end, back-end, iOs/android applications and a lot more!

For people who look at programming as a medium of expression to build stuff, Javascript is a language that a computer can do a whole breadth of things with.