对象的数组声明 [英] Declaring array of objects

问题描述

我有一个变量，它是一个数组，我想在数组中的每个元素作为默认的对象。要做到这一点，我可以做这样的事情在我的code。

I have a variable which is an array and I want every element of the array to act as an object by default. To achieve this, I can do something like this in my code.

var sample = new Array();
sample[0] = new Object();
sample[1] = new Object();

这工作得很好，但我不想提任何索引号。我希望我的数组的所有元素是一个对象。我如何申报或初始化呢？

This works fine, but I don't want to mention any index number. I want all elements of my array to be an object. How do I declare or initialize it?

var sample = new Array();
sample[] = new Object();

我试过上述code，但它不工作。我如何初始化对象的数组不使用索引号？

I tried the above code but it doesn't work. How do I initialize an array of objects without using an index number?

推荐答案

使用的Array.push（）将项目添加到数组的结尾。

Use array.push() to add an item to the end of the array.

var sample = new Array();
sample.push(new Object());

要做到这一点 N 次使用为循环。

To do this n times use a for loop.

var n = 100;
var sample = new Array();
for (var i = 0; i < n; i++)
    sample.push(new Object());

---

请注意，您也可以替换新的Array（）与 [] 和新对象（）与 {} 所以就变成：

var n = 100;
var sample = [];
for (var i = 0; i < n; i++)
    sample.push({});

这篇关于对象的数组声明的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！