Simple Browser Utility function to run sequenced functions

waterfall-simple.js

function waterfall() {
  var args = [].slice.call(arguments);
  var next = args.shift();
  if (!next) return;
  next(); // @todo: check if it's a Promise
  setTimeout(function() { waterfall.apply(null, args); }, 100);
}

// Sample usage:
waterfall(
  function () {
    console.log('Do this!');
  },
  function () {
    console.log('Now do that!');
  }
);