demo.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>

</body>
    <script src="http://cdn.bootcss.com/jquery/1.7.2/jquery.min.js"></script>
    <script type="text/javascript">
        !(function(){

            var Api = {

                API_URL : 'http://m.api.hunantv.com/channel/getDetail',

                fetchApi : function() {

                    var _this = this;

                    return new Promise((resolve,reject) => {
                        $.ajax({ //一个Ajax过程
                            type: "GET", //以get方式与后台沟通
                            url : _this.API_URL, //与此php页面沟通
                            dataType:'jsonp',//从php返回的值以 JSON方式 解释
                            jsonpCallback:"jsonpCallback",
                            data: {
                                'channelId':'1001',
                                'type':'normal'
                            }, //发给php的数据有两项，分别是上面传来的u和p
                            success: resolve,
                            error: reject

                        });

                    })

                },

                result : function(){

                    var _this = this;

                    _this.fetchApi().then(
                        (res) => {
                            console.log(res)
                        },
                        (err) => {
                            console.log(err)
                        }
                    )

                }

            }

            Api.result();


        })()
    </script>
</html>