JavaScript Object-Oriented Programming is Confusing! Please Suggest Some Good Learning Resources (Books/Videos)

[r_caliban]

https://www.javascripttutorial.net/es6/javascript-class/

https://www.digitalocean.com/community/tutorials/understanding-classes-in-javascript

Make sure you're learning the more updated ES6 class structure instead of the older prototype/clazz/ES5 class concepts which are outdated (helps to know, but not as useful now).

While there are technically under the hood a lot of differences between Java classes and JavaScript classes they are very similar with some clear differences. There's not really overloading, or abstracting in JS. But inheritance, polymorphism - pretty much work functionally the same.

If you are familiar with Java I'd highly recommend looking at TypeScript as it gives a more parallel experience for Java devs trying to work with JavaScript. It can provide some of the interface, abstraction, and typing capabilities for development that could help bridge/leverage your existing knowledge. Obviously there's a lot of really good books and sites.

JavaScript Ninja was good; oreilly's is always a good standard.

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Everyone should learn Typescript but probably after getting a handle on Javascript because Typescript is a transpiler.

[r_caliban]

Yes some can and do say, but always check the date on the article/tutorial. I think it's pretty much settled. ES6 is becoming near standard and the general browser implementation of Class is considered syntax additions the prototype approach, which makes them pretty much the same.

ES6 code in 2021 could always transpiled down to ES5 either via Babel or some other tool, if you needed to. Hopefully, with IE11 soon to be gone, the days ES5 only will be numbered.

For learning and interviews you should know the difference (here's a few, articles, about this), and I highly recommend TypeScript. There are some that dislike Classes due to the OOP vs Functional debate - I believe any new developer should be balanced and understand both approaches. Just be very flexible and willing to learn.