Curry a function

curryFunction.js

/** (fn: Function) -> Function **/
const curry = (fn) => {
  /** (fn: Function, totalArgs: number) -> Function **/
  const curryFunc = (fn, totalArgs) => {
    const curriedFunc = (...args) => {
      if (args.length === 0) {
        throw new Error('Please provide the required arguments')
      }

      if (totalArgs === args.length) return fn(...args)

      const remainingArgs = totalArgs - args.length
      return curryFunc((...rest) => fn(...args, ...rest), remainingArgs)
    }

    return curriedFunc
  }

  return curryFunc(fn, fn.length)
}


/**
 * Example
 */
const add = curry((a, b) => a + b)
const volume = curry((l, w, h) => l * w * h)

console.log(add(2, 2))
console.log(add(2)(2))

console.log(volume(1, 2, 3))
console.log(volume(1)(2, 3))
console.log(volume(1)(2)(3))