async

作者: Wrestle_Mania | 来源:发表于2019-11-24 15:26 被阅读0次
const promise = new Promise((resolve, reject) => {
  console.log(1);
  setTimeout(() => {
    resolve(3);
  }, 1000);
});

promise.then(value => {
  console.log(value);
});

console.log(2);  //1->2->3

看下这篇帖子,讲的很不错

相关文章

网友评论

      本文标题:async

      本文链接:https://www.haomeiwen.com/subject/tzplwctx.html