新的价值添加JavaScript中现有阵列 [英] Add new value to an existing array in JavaScript

问题描述

在PHP，我会做这样的事情：

In PHP, I'd do something like:

$array = array();
$array[] = "value1";
$array[] = "value2";
$array[] = "value3";

我怎么会做同样的事情在JavaScript中？

How would I do the same thing in JavaScript?

推荐答案

您不需要的jQuery了点。使用常规的JavaScript

You don't need jQuery for that. Use regular javascript

var arr = new Array();
// or var arr = [];
arr.push('value1');
arr.push('value2');

请注意：在JavaScript中，你也可以使用对象为数组，但仍可以访问阵列原型。这使得对象的行为像一个数组：

Note: In javascript, you can also use Objects as Arrays, but still have access to the Array prototypes. This makes the object behave like an array:

var obj = new Object();
Array.prototype.push.call(obj, 'value');

将创建一个对象，看起来像：

will create an object that looks like:

{
    0: 'value',
    length: 1
}

您可以访问vaules就像一个正常的阵列f.ex OBJ [0] 。

You can access the vaules just like a normal array f.ex obj[0].

这篇关于新的价值添加JavaScript中现有阵列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！