如何在javascript中动态引用变量 [英] How to reference a variable dynamically in javascript

问题描述

我试图在javascript中动态引用变量

I am trying to reference a variable dynamically in javascript

我要调用的变量是amtgc1＃（其中＃从1-7变化）

The variable I am trying to call is amtgc1# (where # varies from 1-7)

我使用while语句循环，而while语句中计数变量的值对应于我试图调用的变量的最后一位数。

I am using a while statement to loop through, and the value of the counting variable in my while statement corresponds with the last digit of the variable I am trying to call.

例如：

            var inc=3;
            var step=0;
            while(step < inc){
                var dataString = dataString + amtgc1#;
                var step = step+1;
            }

其中＃基于变量step的值。我该怎么做呢？任何帮助表示赞赏！谢谢!!

Where # is based on the value of the variable "step". How do I go about doing this? Any help is appreciated! Thanks!!

推荐答案

而不是定义 amtgc1 [1-7] 作为7个不同的变量，将它们实例化为数组。所以你的服务器代码会发出：

Rather than defining amtgc1[1-7] as 7 different variables, instantiate them as an array instead. So your server code would emit:

var amtgc1 = [<what used to be amtgc11>,<what used to be amtgc12>, ...insert the rest here...];

然后，您可以使用数组语法在循环中引用它们：

Then, you can refer to them in your loop using array syntax:

var dataString = dataString + amtgc1[step];

这篇关于如何在javascript中动态引用变量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！