1.
let a = new Promise((resolve,reject)=>{
return 23
})
a;
// promise <pending>
2.
let a = new Promise((resolve,reject)=>{
Promise.reject(234)
})
a;
// promise <pending>
3.
let a = new Promise((resolve,reject)=>{
return Promise.reject(12)
}
a;
//promise <pending>
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/reject
转载于:https://www.cnblogs.com/eret9616/p/11546529.html