Async / Await

Async/Await is a syntax that lets you write Promises more clearly, reading almost like synchronous code.

• async: declares that a function returns a promise

• await: waits until a promise resolves (usable only inside an async function)

javascript

function resolveAfter2Seconds() {
  return new Promise(resolve => {
    setTimeout(() => resolve('resolved'), 2000);
  });
}

async function asyncCall() {
  console.log('calling');
  const result = await resolveAfter2Seconds();
  console.log(result); // "resolved"
}

asyncCall();

You should see

calling (2 seconds later) resolved