Output: sync logs mixed with setTimeout, promise chains and async/await

1console.log('1');
2setTimeout(() => console.log('2'), 0);
3Promise.resolve().then(() => console.log('3'));
4(async () => {
5  console.log('4');
6  await null;
7  console.log('5');
8})();
9Promise.resolve().then(() => console.log('6'));
10console.log('7');