Promise.all

2021-12-15 57 阅读1分钟

var p1  = new Promise((resolve,reject)=>{
    setTimeout(() => {
        resolve('1111')
    }, 1000);
})
var p2  = new Promise((resolve,reject)=>{
    setTimeout(() => {
        resolve('2222')
    }, 2000);
})

Promise.all([p1,p2]).then((res)=>{
    console.log(res)
})