Async / Await simple example

async-await-simple.js

/* === EXAMPLE 1 === */

// Create a simple Promise wrapper for setTimeout
function wait (ms) {
  return new Promise (resolve => setTimeout(resolve, ms));
}

// Declare an async function
async function hello (name) {
  // wait for the specified time
  // Note: The await keyword can only be used within an async function
  await wait(1000);
  console.log(`Hello ${name}!`);
}

hello('Duncan');

/* === EXAMPLE 2 === */

async function notReallyAsync (name) {
  // you can call await on synchronous functions
  await console.log('not really async');
}