lucas-janon

module.exports = (paramName) => {
  throw new Error(`Missing ${paramName}`)
}

lucas-janon

const claimMissing = require('./utils/claimMissing')
const fn = (importantParam = claimMissing('importantParam')) => {
  console.log(importantParam)
}

fn() // Error: Missing importantParam
fn('hello world') // hello world

lucas-janon

const fn = (fnParam) => {
  if (!fnParam) throw new Error('Missing fnParam')
  ...
}