curry function.js

function curry(callback, ...oldParameters) {
  return function(...parameters) {
    const nextParameters = [...oldParameters, ...parameters]

    if (nextParameters.length >= callback.length) {
      return callback(...nextParameters)
    }

    return curry(callback, ...nextParameters)
  }
}

const add = curry((a, b) => a + b)
const increment = add(1)
const decrement = add(-1)

console.log(add(1, 2)) // 3
console.log(increment(1)) // 2
console.log(decrement(1)) // 0