2021-11-01 11:35:48 +08:00

29 lines
475 B
JavaScript

var a;
var b = new Promise((resolve, reject) => {
console.log('promise1');
setTimeout(() => {
resolve();
}, 1000);
})
.then(() => {
console.log('promise2');
})
.then(() => {
console.log('promise3');
})
.then(() => {
console.log('promise4');
});
a = new Promise(async (resolve, reject) => {
console.log(a);
await b;
console.log(a);
console.log('after1');
await a;
resolve(true);
console.log('after2');
});
console.log('end');