1

这是代码：

//Note: x actually isn't defined, I'm pulling it from an external source

var x = [{ name: 'Michael Lovesllamas Lankford',
 created: 1338420951.11,
 laptop: 'pc',
 laptop_version: null,
 userid: '4fc6aed7eb35c14ad6000057',
 acl: 0,
 fans: 1,
 points: 5,
 avatarid: 34 }]

global.UserBase = {
 userid: -1,
 name: "noidea",
 isSuperUser: false,
 isDJ: false,
 laptop: "pc",
 afkWarned: false,
 afkTime: Date.now(),
 droppedTime: null,
 droppedRoom: null,
 songCount: 0,
 mWaitingSongLimit: 0,
 totalSongCount: 0,
 totalHeartCount: 0,
 totalHeartsGiven: 0,
 customGreeting: null,
 bootAfterSong: false,
 joinedTime: Date.now(),
 whiteList: false,
 allowedToReserveSpot: true
};

global.mUsers = {length:0};

global.Register = function(a) {
 for(var i = 0; i < a.length; i++) {
  var sUser = a[i];
  mUsers[sUser.userid] = CreateUser(sUser);
  mUsers.length++;
 }
};

global.CreateUser = function(a) {
 var b = Object.create(UserBase);
 b.userid = a.userid;
 b.name = a.name;
 b.laptop = a.laptop;
 if (a.acl > 0) b.isSuperUser = true;
 return b;
};

Register(x);

现在，问题。而不是 mUsers[sUser.userid] 变成这样：

'4fc6aed7eb35c14ad6000057': {
 userid: "4fc6aed7eb35c14ad6000057",
 name: "noidea",
 isSuperUser: false,
 isDJ: false,
 laptop: "pc",
 afkWarned: false,
 afkTime: Date.now(),
 droppedTime: null,
 droppedRoom: null,
 songCount: 0,
 mWaitingSongLimit: 0,
 totalSongCount: 0,
 totalHeartCount: 0,
 totalHeartsGiven: 0,
 customGreeting: null,
 bootAfterSong: false,
 joinedTime: Date.now(),
 whiteList: false,
 allowedToReserveSpot: true
}

它变成了这样：

'4fc6aed7eb35c14ad6000057': { 
 userid: '4fc6aed7eb35c14ad6000057',
 name: 'Michael Lovesllamas Lankford',
 laptop: 'pc' 
}

任何想法为什么 UserBase 中的其余值没有被添加到对象中？

4

3 回答 3

0

UserBase在对象上global，您需要调用对象。Registerglobal

global.CreateUser = function(a) {
 var b = Object.create(this.UserBase);
 b.userid = a.userid;
 b.name = a.name;
 b.laptop = a.laptop;
 if (a.acl > 0) b.isSuperUser = true;
 return b;
};

global.Register(x);
于 2012-06-19T06:37:54.333 回答
0

发生这种情况是因为您只是在初始化用户 ID、名称和笔记本电脑的值。查看您的代码：

b.userid = a.userid;
b.name = a.name;  
b.laptop = a.laptop;

要获得所需的结果，您需要调用 Global.Register(x) 而不是 Register(x)

于 2012-06-19T06:42:22.553 回答
0

Object.create创建一个新对象并将其设置prototype为您传入的对象。

您的对象正在初始化，但您只是在新对象实例上明确设置了一些属性。原型对象 ( UserBase) 中的属性都是可访问的，但对象的直接console.log属性不会打印它们。

例如，在运行您的代码后，执行以下操作：

for(var p in mUsers['4fc6aed7eb35c14ad6000057']) {
  console.log(p, mUsers['4fc6aed7eb35c14ad6000057'][p]);
}

打印出来：

userid 4fc6aed7eb35c14ad6000057
name Michael Lovesllamas Lankford
laptop pc
isSuperUser false
isDJ false
afkWarned false
afkTime 1340089066700
droppedTime null
droppedRoom null
songCount 0
mWaitingSongLimit 0
totalSongCount 0
totalHeartCount 0
totalHeartsGiven 0
customGreeting null
bootAfterSong false
joinedTime 1340089066700
whiteList false
allowedToReserveSpot true
于 2012-06-19T07:00:26.943 回答