One line curry function in Javascript ES6

curry.js

const curry = (fn, arr = []) => (...params) => (arr.length + params.length >= fn.length) ? fn(...[...arr, ...params]) : curry(fn, [...arr, ...params])

/* Testing with a sum function */
const sum = curry(function (a, b, c, d, e) {
  return a + b + c + d + e
})

console.log(sum(1, 2, 3, 4, 5)) // 15
console.log(sum()()(1)()(2)()(3, 4)(5)) // 15
console.log(sum(1, 2, 3)()()()(4, 5)) // 15