console.log('1');
 
setTimeout(() => console.log('2'), 0);
 
new Promise((resolve, reject) => {
    console.log('3');
    reject();
})
    .then(() => console.log('4'))
    .catch(() => console.log('5'))
    .catch(() => console.log('6'))
    .then(() => console.log('7'))
    .then(() => console.log('8'))
    .catch(() => console.log('9'));