chain-do.js

const chainStep = fn => (argSource, history) => {
  if (argSource && (typeof argSource === 'object')) {
    const then = argSource.then;
    if (typeof then === 'function') {
      return Promise.all(history).then(
        settledHistory =>
          then.call(argSource, arg => fn(arg, ...settledHistory))
      );
    }
  }
  return fn(argSource, ...history);
};

const chain = (...fns) =>
  initialValue => fns.reduce(
    ({ previous, collectedResults }, fn) => {
      const result = chainStep(fn)(previous, collectedResults);
      return {
        previous: result,
        collectedResults: collectedResults.concat(result),
      };
    },
    { previous: initialValue, collectedResults: [] }
  ).previous;
  
chain(
  x => Promise.resolve(x + 1),
  x => Promise.resolve(x / 2),
  x => Promise.resolve(x / 2),
  (_, a, b, c) => [a, b, c]
)(0)
.should.eventually.deep.equal([1, 1 / 2, 1 / 4]);

// run it: https://jsfiddle.net/mnayn4L4/1/