SOURCE

setTimeout(() => { console.log(1) }, 0)
let promise1 = new Promise((res, reject) => {
    res(2)
    console.log(3)
});
let promise2 = new Promise((res, reject) => {
    res(4)
    console.log(5)
});
setTimeout(() => { console.log(6) }, 0)
promise1.then(res => { console.log(res) }).catch().finally(_ => { console.log(7) })
promise2.then(res => { console.log(res) })