Javascript closures and recursion

What is a closure?

A closure is a feature in JavaScript where an inner function has access to the outer (enclosing) function’s variables.

	function outer() {
	let a = 10;
	function inner() {
	let b = 20;
	console.log(a+b);
	}
	return inner;
	}

view raw closure.js hosted with ❤ by GitHub

I think, that closures are very handy for recursive call.

What is a recursion?

Simply said, the process in which a function calls itself.

When you create a recursive function, keep in mind that there must be an escape from the recursive function, otherwise you will get into an infinite loop.

Below I created a function, which call yourself. Recursion can be very complex, but the principle is the same.

Try it yourself: