Awaiting multiple results in a series

Sometimes it's necessary to arrange asynchronous operations in a series. In previous recipes, we've seen how to do this with Promise.then. In this recipe, we'll see how to do the same thing with the await operator.

Getting ready

This recipe assumes you already have a workspace that allows you to create and run ES modules in your browser. If you don't, please see the first two chapters.

How to do it...

1. Open your command-line application and navigate to your workspace.
2. Create a new folder named 04-03-async-function-Promise-chain.
3. Copy or create an index.html that loads and runs a main function from main.js.
4. Create an async function, getRandomNumber, that returns a random number:

async function getRandomNumber() { 
  console.log('Getting random number.'); 
  return Math.random(); 
} 

5. Create an async function, determineReadyToLaunch, that returns true if its first argument is greater than 0.5:

async function deteremineReadyToLaunch(percentage) { 
  console.log('Determining...