如何将变量值附加到另一个变量 [英] How to append variable value to another variable

问题描述

var price11 = 100;

var i = 11;

var displayprice;

displayprice = price +'i';应该为显示价格分配100（价值11）。



是否可能。？



我尝试过：



var price11 = 100;

var i = 11;

var displayprice;

displayprice = price +'i';应该将100（价值11）分配给displayprice。



是否可能。？

var price11=100;
var i=11;
var displayprice;
displayprice= price+'i'; should assign 100(value of price11) to displayprice.

is it possible.?

What I have tried:

var price11=100;
var i=11;
var displayprice;
displayprice= price+'i'; should assign 100(value of price11) to displayprice.

is it possible.?

推荐答案

为什么你把单引号放在我身边了吗？我的猜测是你从某个地方复制了代码。所以，只需深呼吸，看看代码。



你在价格11和11中存储100个。所以，将它们加在一起，价格+ i。

Why did you put single quotes around i? My guess is you copied code from somewhere. So, just take a deep breath and look at the code.

You are storing 100 in price11 and 11 in i. So, add them together, price + i.

var price=100;
       var i=11;
       var displayprice;
       displayprice = price + 'i'; // this will result '100i', since the 'i' is considered as a string.
       displayprice = price + i; // this results 111, since both are of int type

在您的情况下，您应使用评估 [ ^ ]，或角度Js表达式 [ ^ ]获取值为int

In your case, you shall use eval[^], or Angular Js Expression[^] to get the value as int

displayprice = price + eval('i'); // 111

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