js replace 替换路径无效的问题

问题复现

我们先看一段代码

var imageSrc = "F:\md\assets\image-20220418143258134.png";
var url = "https://img2022.cnblogs.com/blog/1652001/202204/1652001-20220418185238494-466983647.png";
fileContent = "F:\\md\\assets\\image-20220418143258134.png1213131";
console.log(fileContent);
console.log(fileContent.replace(imageSrc,url));

运行之后发现

你会发现并没有替换，并且从打印看结果一模一样

解决方法

使用String.raw

详细语法见：

https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/String/raw

这时候将上面代码改成

var imageSrc = String.raw`F:\md\assets\image-20220418143258134.png`;
var url = "https://img2022.cnblogs.com/blog/1652001/202204/1652001-20220418185238494-466983647.png";
fileContent = "F:\\md\\assets\\image-20220418143258134.png1213131";

console.log(imageSrc);
console.log(fileContent);
console.log(fileContent.replace(imageSrc,url));