curry MST

const addFn = (...args) => args.reduce((total, cur) => total + cur, 0)

const curry = (fn) => {
    let params = []
    return function f(...rest) {
        if (rest.length) {
            params = params.concat(rest)
            return f
        }
        return fn(...params)
    }
}

const add = curry(addFn)

const value = add(1, 2)(3)(4)()

console.log(value) // 10