Problem Link Description null Solution TypeScript function curry(fn: Function): Function { return function curried(...args) { if (args.length >= fn.length) { return fn(...args) } else { return (...args2) => curried(...args, ...args2); } }; }; /** * function sum(a, b) { return a + b; } * const csum = curry(sum); * csum(1)(2) // 3 */