在JavaScript关联数组中动态创建键 [英] Dynamically creating keys in JavaScript associative array

问题描述

如何在javascript关联数组中动态创建键？

How can I dynamically create keys in javascript associative arrays?

到目前为止，我发现的所有文档都是更新已创建的密钥：

All the documentation I've found so far is to update keys that are already created:

 arr['key'] = val;

我有一个像这样的字符串name = oscar

I have a string like this " name = oscar "

我想最终得到这样的结果：

And I want to end up with something like this:

{ name: 'whatever' }

这是我拆分字符串并获取第一个元素，我想把它放在字典里。

That is I split the string and get the first element, and I want to put that in a dictionary.

var text = ' name = oscar '
var dict = new Array();
var keyValuePair = text.split(' = ');
dict[ keyValuePair[0] ] = 'whatever';
alert( dict ); // prints nothing.

推荐答案

使用第一个示例。如果密钥不存在，则会添加。

Use the first example. If the key doesn't exist it will be added.

var a = new Array();
a['name'] = 'oscar';
alert(a['name']);

将弹出一个包含'oscar'的消息框。

Will pop up a message box containing 'oscar'.

尝试：

var text = 'name = oscar'
var dict = new Array()
var keyValuePair = text.replace(/ /g,'').split('=');
dict[ keyValuePair[0] ] = keyValuePair[1];
alert( dict[keyValuePair[0]] );

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