windows store app promise

Promise.any ---- 参数是一个promise的数组。any的作用就是 promise 数组中任意一个 promise 执行完毕，就会执行 done内的函数

(function () {

    "use strict";



    WinJS.Binding.optimizeBindingReferences = true;



    var app = WinJS.Application;

    var activation = Windows.ApplicationModel.Activation;



    app.onactivated = function (args) {

        if (args.detail.kind === activation.ActivationKind.launch) {

            if (args.detail.previousExecutionState !== activation.ApplicationExecutionState.terminated) {

                var promiseArr = [];

                var url = 'http://files.cnblogs.com/Mr-Joe/a.js';

                var url2 = 'http://files.cnblogs.com/Mr-Joe/a2.js';

                var success = function (text) {

                    var a = JSON.parse(text.responseText);

                }



                var getData = function (url) {

                    promiseArr.push(WinJS.xhr({

                        url: url

                    }))

                }



                getData(url2);

                getData(url);



                WinJS.Promise.any(promiseArr).done(function (result) {

                    var primiseIndex = result.index;  //the index of  fullfilled promise.





                });

            }

        }

        args.setPromise(WinJS.UI.processAll());



    };

    app.start();

})();

Promise.join 

Promise.any ---- 参数是一个promise的数组。any的作用就是 promise 数组所有的 promise 执行完毕，才会执行 done内的函数