[Curry] #JavaScript

curry.js

const curry = function curry(func) {
    return function curried(...args) {
        if (args.length >= func.length) {
            return func.apply(this, args);
        } else {
            return function(...args2) {
                return curried.apply(this, args.concat(args2));
            }
        }
    };
}

function sum(a, b, c) {
    return a + b + c;
}
let curriedSum = curry(sum);

console.log(curriedSum(1)(2)(3));