Javascript AngularJS Socket.io:无法读取属性';发射';未定义的
目前我正在尝试将angularjs与node和socketio一起使用。但是我得到了以下错误 TypeError:无法读取未定义的属性“emit” 位于k.$scope.EnteredUsername() 当调用enteredUsername()函数时,他似乎不知道“socket”。我的工厂有什么问题吗 app.js:Javascript AngularJS Socket.io:无法读取属性';发射';未定义的,javascript,node.js,angularjs,socket.io,Javascript,Node.js,Angularjs,Socket.io,目前我正在尝试将angularjs与node和socketio一起使用。但是我得到了以下错误 TypeError:无法读取未定义的属性“emit” 位于k.$scope.EnteredUsername() 当调用enteredUsername()函数时,他似乎不知道“socket”。我的工厂有什么问题吗 app.js: 'use strict'; angular.module('myApp', [ 'ngRoute', 'myApp.filters', 'myApp.service
'use strict';
angular.module('myApp', [
'ngRoute',
'myApp.filters',
'myApp.services',
'myApp.directives',
'myApp.controllers'
])
.config(['$routeProvider', function($routeProvider) {
$routeProvider.when('/viewUsername', {templateUrl: 'partials/username.html', controller: 'usernameCtrl'});
$routeProvider.when('/viewImpressum', {templateUrl: 'partials/impressum.html', controller: 'impressumCtrl'});
$routeProvider.otherwise({redirectTo: '/viewUsername'});
}]);
controllers.js:
'use strict';
/* Controllers */
angular.module('myApp.controllers', [])
.factory('socket', function($rootScope) {
var socket = io.connect('http://localhost:1337');
return {
on: function(eventName, callback) {
socket.on(eventName, function() {
var args = arguments;
$rootScope.$apply(function() {
callback.apply(socket, args);
});
});
},
emit: function(eventName, data, callback) {
socket.emit(eventName, data, function() {
var args = arguments;
$rootScope.$apply(function() {
if(callback) {
callback.apply(socket, args);
}
});
});
}
};
})
.controller('usernameCtrl', ['$scope', function($scope, socket) {
$scope.username = 'guest';
$scope.EnteredUsername = function() {
var username = $scope.username;
socket.emit('enteredUsername', username);
}
}]);
您没有将其添加为字符串:
.controller('usernameCtrl', ['$scope', 'socket', function($scope, socket) {