构建对象数组编程

Question

说我希望对象是这样的：

var Book = { 
     title: "the catcher in the rye", 
     price: "80.98", 
     characters: [{name: "holden caulfield", age: 16, height:"6.2"}, 
        {name: "phoebe caulfield",age:13, height: "5"}] 
    }; 

EDITED

问题： 字符数组是通过添加一个字符一个接一个建成。在确保名称，年龄和身高属性如上定义时，如何做到这一点。

有什么影响？

Book.characters.add({name: "phoebe caulfield",age:13, height: "5"}); 

我想能够以编程方式定义这个，即添加属性的对象，而不是像这样定义它。

这可能吗？

Answer 1

你能做到在动态代码（而不是静态的声明）是这样的：

var Book = {}; 

Book.title = "the catcher in the rye"; 
Book.price = "80.98"; 
Book.characters = []; 
Book.characters.push({name: "holden caulfield", age: 16, height: "6.2"}); 
Book.characters.push({name: "phoebe caulfield", age: 13, height: "5"}); 

Answer 2

你的意思是这样吗？

var Book = {}; // empty object 

Book.title = "the catcher in the rye"; 
Book.price = 80.98; 
Book.characters = []; 

var character = { 
    "name": "holden caulfield", 
    "age": 16, 
    "height": 6.2 
}; 

Book.characters.push(character); 

Answer 3

var Book={}; 
Book.title="the catcher in the rye"; 
Book.price="80.98"; 
var characters=[]; 
characters.push({name: "holden caulfield", age: 16, height:"6.2"}); 
characters.push({name: "phoebe caulfield",age:13, height: "5"}); 
Book.characters=characters; 

...等。

Answer 4

当然是！ Javascript是一种完全动态的语言 - 如果你想要一个对象的新属性，只需设置它！

例如

var myObject = {}; // empty object 
myObject.myProperty = 5; // creates the new property and sets it to 5. 
myObject.nestedObject = { prop1: 6, 'long-property-name': 'lolcats' }; 

Answer 5

我认为你正在寻找一个JSON stringifier： http://www.json.org/js.html

这将允许你创建你的对象：

var myobj = { }; 
myobj.myprop = "value"; 
alert(JSON.stringify(myobj));