Is there any way to make a function's return accessible via a property?

Question

I\'m a JS dev, experimenting with functional programming ideas, and I\'m wondering if there\'s anyway to use chains for synchronous functions in the way the promise chains are w

Answer 1

You wouldn't have to modify Function.prototype, but Number.prototype. You're trying to create a new method that acts on a number, not on a function. This does what you're trying to do:

Number.prototype.square = function() {
  return this * this;
}

let x = 4;

let y = x.square().square(); // -> 256