It's disappointing to see the false "JavaScript is functional" claim thrown around time and time again.
Just because it has first-class functions it does not mean that JavaScript is a "functional" language.
JavaScript does not promote the use of pure functions, referential transparency, and the minimization of state.
JavaScript does not encourage the use of recursion.
JavaScript has an atrociously broken type system, rather than a robust and theoretically sound one.
JavaScript does not offer pattern matching and other functionality offered by modern functional languages.
In fact, it goes out of its way to promote a very imperative, non-functional style of software development, even when efforts are made to try to use it in a functional way.
Comments
It's disappointing to see the false "JavaScript is functional" claim thrown around time and time again.
Just because it has first-class functions it does not mean that JavaScript is a "functional" language.
JavaScript does not promote the use of pure functions, referential transparency, and the minimization of state.
JavaScript does not encourage the use of recursion.
JavaScript has an atrociously broken type system, rather than a robust and theoretically sound one.
JavaScript does not offer pattern matching and other functionality offered by modern functional languages.
In fact, it goes out of its way to promote a very imperative, non-functional style of software development, even when efforts are made to try to use it in a functional way.