Day-10 (2632. Curry).js

/**
 * @param {Function} fn
 * @return {Function}
 */
var curry = function(fn) {
    return function curried(...args) {
        if(args.length >= fn.length){
            return fn.apply(this, args);
        }
        return curried.bind(this, ...args);
    };
};

/**
 * function sum(a, b) { return a + b; }
 * const csum = curry(sum);
 * csum(1)(2) // 3
 */