for (var i = 0; i < 3; i++) {
  setTimeout(() => console.log(i), 1);
}
...

const foo = () => console.log("Premier");
const bar = () => setTimeout(() => console.log("Second"));
const baz = () => console.log("Troisième");
...

const firstPromise = new Promise((res, rej) => {
  setTimeout(res, 500, "one");
});
...