如何在 JavaScript 中定义对象变量结构？
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How do I define an object variable structure in JavaScript?
提问by Leamphil
I want to define something like the following object structure, so I can populate it from a number of sources. What statements do I need to define it?
我想定义类似于以下对象结构的内容，以便我可以从多个来源填充它。我需要什么语句来定义它？
Offices[]is an open-ended array as is rel[]underneath it. All the elements are strings or maybe numbers.
Offices[]是一个开放式阵列，就像rel[]在它下面一样。所有元素都是字符串或数字。
Offices.name
Offices.desc
Offices.rel.type
Offices.rel.pt
回答by tymeJV
First I would make Officesan array:
首先我会做Offices一个数组：
var Offices = [];
Then populate that with objects:
然后用对象填充它：
var obj = {
name: "test",
desc: "Some description",
rel: []
}
Offices.push(obj);
Now you have your array (Offices) populated with one object, so you could access it via Offices[0].desc-- you can also populate the relarray with Offices[0].rel.push(anotherObj)
现在您的数组 ( Offices) 填充了一个对象，因此您可以通过访问它Offices[0].desc——您也可以rel使用Offices[0].rel.push(anotherObj)
回答by Tibos
If i understand correctly, you want to place multiple objects of the same type inside the Offices array. In order to easily build multiple objects of the same type you could use a constructor:
如果我理解正确，您想在 Offices 数组中放置多个相同类型的对象。为了轻松构建多个相同类型的对象，您可以使用构造函数：
function Office(name, desc, rel){
this.name = name;
this.desc = desc;
this.rel = rel;
}
Now you can declare an array to hold instances of the above type:
现在您可以声明一个数组来保存上述类型的实例：
var offices = [];
And you can add new instances like this:
您可以像这样添加新实例：
offices.push(new Office('John', 'good guy', []));
You can apply the same idea to the rel array to enforce the structure of the objects, or simply use object and array literals:
您可以将相同的想法应用于 rel 数组以强制执行对象的结构，或者简单地使用对象和数组文字：
offices.push(new Office('John', 'good guy', [{ type : 'M', pt : 3 }, { type : 'Q', pt : 2 }]);
