sequentialCallback.js

function sequentialCallback (...fns) {
  return (...args) => {
    const done = args.pop()
    const next = (error, ...args) => {
      if (error) return done(error)
      if (fns.length) {
        const fn = fns.shift()
        return fn(...args, next)
      }
      return done(null, ...args)
    }
    return next(null, ...args)
  }
}

Compared to the form with Promise

findSomething()
  .then(transformSomething)
  .then(validateTransformed)
  .then((validated) => console.log('data is valid:', validated))
  .catch((error) => console.error(new Error(error))