javascript - 如何将字符串转换为插值字符串？

Question

我从后端收到一个字符串。比方说

"Save Earth, ${name}"

在前端，我使用 javascript
我想知道如何绑定(bind) name从变量中获取字符串。
我知道 JS 中的字符串插值，如下所示

`Save Earth, ${name}`

Even on using string interpolation is not helping me andI'm getting normal string from backend like below:

  const name = "John"; 
  const response = "Save Earth, ${name}";
  console.log(`${response}`);

我得到了什么

"Save Earth, ${name}"

预计

"Save Earth, John"

NOTE: I can't use string find & replace method because the variable name can be anything.

编辑 :
我需要使用 Regex至 find & replace方法只在这里。

Why I am looking for another approach?Because the string can be lengthy and I feel that will increase the time complexity.

Answer 1

为此，您需要使用正则表达式的替换功能
使用/${\w+}/变量，您定义了什么。

const name = "John";
const response = "Save Earth, ${name}";

const newResponse = response.replace(/\${\w+}/ ,name);

console.log(newResponse);