javascript - 如何关联 javascript 中的两个对象？

Question

我创建了两个对象:User 和 Blog，我需要将它们关联起来。我的想法是为每个人创建一个 ID，然后进行关联。 ID是在创建实例时通过array.length创建的。

associateUserWithBlog 函数存储各自用户的博客。在用户实例中，我定义了一个数组来存储用户创建的所有博客。我的问题是是否有另一种方法可以进行这种关联。稍后我需要打印所有博客及其所有者(用户)，有时我很难打印。

function User(name, level, title, id, entry, comment) {
     this.name = name;
     this.level = level;
     this.title = title;
     this.id = id;
     this.entry = entry;
     this.comment = comment;
}

function Blog(blogID, title, userID, blogText) {
     this.blogID = blogID;
     this.title = title;
     this.userID = userID;
     this.blogText = blogText;
     this.comment = comment;
}

users = new Array();
blogs = new Array();

function associateUserWithBlog(userID, entryID) {
    users[userID].entry = entryID;
}

// user with id = 0
userID = users.length
var user = new User(userID, "Bob", "Student", "Mr", new Array())

// blog with id = 0 and user associate with id = 0
blogID = blogs.length
var blog = new Blog(entries.length, "Blog 1", 0, "Welcome Blog 1");

associateUserWithEntry(userID, blogID);

Answer 1

以下创建一个用户，该用户拥有他拥有的任意数量的博客作为关联。

您可以向用户对象添加更具体的行为并将其转换为模块模式。我已经添加了一个片段，它给出了这样一个对象的简要概述。

function createUser(userOpts) {
    //private members
     var name = userOpts.name;
     var level = userOpts.level;
     var title = userOpts.title;
     var id = userOpts.id;
     var entry = userOpts.entry;
     var comment = userOpts.comment;
     var blogs = userOpts.blogs || [];
  return {  
      
      //All methods to manipulate private data
    
     createBlog:function() {...} 
     getBlogs: function() { return blogs.slice(); }
     //...other methods
  };  
 }
  
 
  var user = createUser(opts);