Javascript 在Javascript中连接动态变量名称
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时间:2020-08-23 07:13:52 来源:igfitidea点击:
Concatenate a dynamic variable name in Javascript
提问by jason328
In PHP you can concatenate a variable name like this
在 PHP 中,您可以像这样连接变量名
$a = 1
${'fruit_' . $a} = 'apple';
The result will lead to the creation of variable $fruit_a
结果将导致创建变量 $fruit_a
How would I do this in javascript?
我将如何在 javascript 中做到这一点?
回答by Jo?o Silva
Not sure exactly what you are trying to accomplish, but with JavaScript, you could use the following:
不确定您要完成什么,但是使用 JavaScript,您可以使用以下内容:
> var a = 1;
> var b = {};
> b['fruit_' + a] = 'apple';
> b.fruit_1
"apple"
> b['fruit_1']
"apple"
回答by Ethan Brown
var a = 1;
this['fruit_' + a] = 'apple';
console.log( fruit_1 );