努力让承诺在angularjs服务提供商 正常工作,我读过docs以及无数的例子(here,here和here),我想我已经得到了我的语法确定 (虽然显然什么是错的)angularjs延期承诺不推迟
应用模块和控制器的样子
var myApp = angular.module('myApp', []);
myApp.controller('Controller_1', ['$scope', 'Service_1', function($scope, Service_1) {
var myName = "Ben";
Service_1.slowService(myName)
.then(Service_1.fastService(name));
$scope.myName = myName;
}]);
服务(用慢功能)看起来像这样:
myApp.service('Service_1', function($q) {
this.slowService = function (name) {
var deferred = $q.defer();
console.log('Start of slowService:', name, Date.now());
setTimeout(function() {
console.log('setTimeout name:', name, Date.now());
if(name){
name = 'Hello, ' + name + " is learning Angularjs";
alert(name);
console.log('name:', name);
deferred.resolve(name);
} else {
deferred.reject('No name supplied !');
}
}, 3000);
return deferred.promise;
};
this.fastService = function(name){
console.log('Start of fastFunction:', name, Date.now());
alert('Hello ' + name + ' - you are quick!');
};
});
控制台输出看起来是这样的:
Start of slowService: Ben 1420832940118
Start of fastFunction: result 1420832940122
setTimeout name: Ben 1420832948422
name: Hello, Ben is learning Angularjs
的fastService
是slowService
完成之前开始,尽管使用延迟对象/在Service_1
,并承诺在控制器中.then
...
任何人都可以指出代码有什么问题吗?
的jsfiddle是here
编辑:把快捷功能的服务,以便有一个与吊装等不会产生混淆 - 仍然是同样的结果 - 爵士小提琴更新
它似乎setTimout稍后执行http://jsfiddle.net/q4vofnz8/18/ – sbaaaang 2015-01-09 20:15:50
这里使用事件的例子http://jsfiddle.net/q4vofnz8/21/ – sbaaaang 2015-01-09 20:24:06