debug.js

const debug = (name, val) => {
  console.log(name, val)
  return val
}

const debugFn = (name, fn) => {
  return (...args) => {
    console.log(name + ':arguments %O', args)
    const result = fn(...args)
    console.log(name + ':return %O', result)
    return result
  }
}