錯誤：[$ injector：undef] Provider''必須從$ get factory方法返回一個值

Question

我正在努力學習AngularJS。 在我跟隨導師的時候，我寫了與他相同的代碼。 但我得到一個Error: [$injector:undef] Provider 'eliteApi' must return a value from $get factory method. 。 當我在網絡中搜索此錯誤時，會告訴我必須返回一個函數或一個對象。 我想我在做。 我的工廠聲明如下：

 angular.module("eliteApp",["ionic"]) .factory('eliteApi', function() { function eliteApi(){ var leagues = JSON.parse('"name": "Spring Fling Tournament 2014","id": 2009,"homeScreen": "* 5th Grade Championship - 7:30m MAC 3\\n* 6th Grade Championship - 6:30pm MAC 4\\n* 7th Grade White Championship - 7:30pm MAC 4\\n* 7th Grade Green Championship - 7:30pm MAC 2\\n* 8th Grade Championship - 7:30pm MAC 1\\n* 9th Grade Championship - 8:30pm MAC 4\\n* 10th Grade Championship - 8:30pm MAC 1\\n* 11th Grade Championship - 8:30pm MAC 3","rulesScreen": null'); function getLeagues(){ return leagues; } return { getLeagues : getLeagues }; }; }) .controller('LeaguesCtrl', [ '$scope','eliteApi', function($scope, eliteApi) { function LeaguesCtrl(eliteApi){ var vm = this ; var leagues = eliteApi.getLeagues(); }; }]) 

任何幫助表示贊賞......

Answer 1

將您的factory更改為：

.factory('eliteApi', [function() {

 return {
          getLeagues : function(){
                           var leagues = JSON.parse({"name": "Spring Fling Tournament 2014","id": 2009,"homeScreen": "* 5th Grade Championship - 7:30m MAC 3\n* 6th Grade Championship - 6:30pm MAC 4\n* 7th Grade White Championship - 7:30pm MAC 4\n* 7th Grade Green Championship - 7:30pm MAC 2\n* 8th Grade Championship - 7:30pm MAC 1\n* 9th Grade Championship - 8:30pm MAC 4\n* 10th Grade Championship - 8:30pm MAC 1\n* 11th Grade Championship - 8:30pm MAC 3","rulesScreen": null});
                           return leagues;
                       }
        }
}])

看看這是否有效。

UPDATE

你的變量league不是一個合適的JSON 。 將其更改為

 var leagues = JSON.parse({"name": "Spring Fling Tournament 2014","id": 2009,"homeScreen": "* 5th Grade Championship - 7:30m MAC 3\n* 6th Grade Championship - 6:30pm MAC 4\n* 7th Grade White Championship - 7:30pm MAC 4\n* 7th Grade Green Championship - 7:30pm MAC 2\n* 8th Grade Championship - 7:30pm MAC 1\n* 9th Grade Championship - 8:30pm MAC 4\n* 10th Grade Championship - 8:30pm MAC 1\n* 11th Grade Championship - 8:30pm MAC 3","rulesScreen": null});

你忘記了{} 。 同時刪除引號' 。

Answer 2

@ Sourabh-謝謝你的幫助，這是解決方案：

 .factory('eliteApi', function() { var leagues1 = JSON.stringify({"name": "Spring Fling Tournament 2014","id": 2009,"homeScreen": "* 5th Grade Championship - 7:30m MAC 3\\n* 6th Grade Championship - 6:30pm MAC 4\\n* 7th Grade White Championship - 7:30pm MAC 4\\n* 7th Grade Green Championship - 7:30pm MAC 2\\n* 8th Grade Championship - 7:30pm MAC 1\\n* 9th Grade Championship - 8:30pm MAC 4\\n* 10th Grade Championship - 8:30pm MAC 1\\n* 11th Grade Championship - 8:30pm MAC 3","rulesScreen": null}); var leagues = JSON.parse(leagues1); return { getLeagues : function getLeagues(){ return leagues; } }; }) .controller('LeaguesCtrl', [ '$scope','eliteApi', function($scope, eliteApi) { var leagues = eliteApi.getLeagues(); var leagueData = eliteApi.getLeaguesData(); })