Promise.then()链式调用

new Promise(function(resolve, reject){
    //异步调用成功
    resolve(传递给then的参数);
    //异步调用失败
    reject(传递给catch的参数);
}).then(function(resolve传递过来的参数){
    return new Promise(function(resolve, reject){
        //异步调用成功
        resolve(传递给then的参数);
        //异步调用失败
        reject(传递给catch的参数);
    });
}).then(function(resolve传递过来的参数){
    return new Promise(function(resolve, reject){
        //异步调用成功
        resolve(传递给then的参数);
        //异步调用失败
        reject(传递给catch的参数);
    });
});
标签: javascript
评论列表
  1. 音乐界新传奇:郭沁你听过吗?:https://501h.com/danzhiye/7219.html

  2. 《我爱王老五》爱情片高清在线免费观看:https://www.jgz518.com/xingkong/39348.html

添加新评论