Is it possible to create custom operators in JavaScript?

Question

During the Math classes we learned how to define new operators. For example:

(ℝ, ∘), x ∘ y = x + 2y

This defines ∘ law. For any r

Answer 1

Set of compiled to JS languages support custom operators.

I would highlight ReasonML (ocaml-syntax-readable-by-js-folks) and Bucklescript (ocaml-to-js-compiler) which makes custom operators look neat:

For example an operator to concatenate strings can look like:

let (>|<) = (list, seperator) => Belt.List.reduce(list, "", (a, b) => a ++ seperator ++ b);

which can then be used like:

[Styles.button, Media.Classes.atLeastTablet] >|< " "

The downside of all this is the fact it has to be written in such compiled-to-js language, and it comes with lots of pros and cons, but usually those languages have the appeal of tons of nice syntactic sugar you don't get in js/ts