Encapsulation, inheritance and polymorphism all work fine with JavaScript classes. OOP works just fine.

What doesn't work in JavaScript is functional programming.

I don’t see how? You can do all sorts of FP in js and it even has some of it in its built in APIs. .then comes from FP

	▲	lateforwork an hour ago \| parent \| next [-]
		You are right, there are some FP features in JavaScript. But the way it is used in the predominant UI framework (namely React) is definitely breaks FP, see https://mckoder.medium.com/why-react-is-not-functional-b1ed1...
	▲	nurple an hour ago \| parent \| prev [-]
		Yes, but promises are (unfortunately) _not_ monads! https://rybicki.io/blog/2023/12/23/promises-arent-monads.htm...