AngularJS服务回调中的作用域丢失
我对下面的代码有问题。我需要在AngularJS服务回调中的作用域丢失,angularjs,angularjs-service,Angularjs,Angularjs Service,我对下面的代码有问题。我需要在$timeout或$http的回调后引用此。计数器,但它未定义,因此请在此处为我指示灯 var myApp = angular.module('myApp',[]); myApp.service('myFabricService', function($q,$timeout){ this.counter = 1; this.getMessages = function() { $timeout(function() {
$timeout或$http的回调后引用此。计数器
,但它未定义,因此请在此处为我指示灯
var myApp = angular.module('myApp',[]);
myApp.service('myFabricService', function($q,$timeout){
this.counter = 1;
this.getMessages = function() {
$timeout(function() {
console.log(this.counter); // <--- this will show undefined
this.counter++; // <--- this.counter is undefined
}, 300);
return false;
}
});
myApp.controller('BackgroundCtrl', function($scope,myFabricService) {
$scope.yourName = "my name";
$scope.$watch('yourName', function(newvalue, oldvalue) {
myFabricService.getMessages();
});
});
var myApp=angular.module('myApp',[]);
myApp.service('myFabricService',函数($q,$timeout){
这个计数器=1;
this.getMessages=函数(){
$timeout(函数(){
console.log(this.counter);//使用通常的肮脏技巧:
this.counter = 1;
this.getMessages = function() {
var that = this;
$timeout(function() {
console.log(that.counter); // <--- this will show undefined
that.counter++; // <--- this.counter is undefined
}, 300);
return false;
}
this.counter=1;
this.getMessages=函数(){
var=这个;
$timeout(函数(){
console.log(that.counter);//哦,非常感谢。如果我们想使用$q呢?不知道你的意思。