2629. Function Composition

https://leetcode.com/problems/function-composition

Javascript

var compose = function(functions) {
    return function(x) {
        let curr = x
        while (functions.length > 0) {
            curr = functions.pop()(curr)
        }
        return curr
    }
};

Typescript

type F = (x: number) => number;

function compose(functions: F[]): F {
	return function(x) {
       let curr = x
        while (functions.length > 0) {
            curr = functions.pop()(curr)
        }
        return curr
    }
};