如何在ES6模板文字的输出中添加一个反斜杠？ [英] How do I put a single backslash into an ES6 template literal's output?

问题描述

我正在努力获取ES6模板文字以对其结果产生一个反斜杠。

I'm struggling to get an ES6 template literal to produce a single backslash it its result.

> `\s`
's'
> `\\s`
'\\s'
> `\\\s`
'\\s'
> `\\\\s`
'\\\\s'
> `\u005Cs`
'\\s'

已通过Node 8.9测试。 1和10.0.0，方法是检查节点REPL上的值（而不是使用 console.log 打印它）

Tested with Node 8.9.1 and 10.0.0 by inspecting the value at a Node REPL (rather than printing it using console.log)

推荐答案

如果我对您的问题没问题， \\ 怎么样？

If I get your question right, how about \\?

我尝试使用 $ node -i 并运行

console.log(`\\`);

已成功输出反斜杠。请记住，输出也可能会转义，因此知道您成功获得反斜线的唯一方法是获取字符代码：

Which successfully output a backslash. Keep in mind that the output might be escaped as well, so the only way to know you are successfully getting a backslash is getting the character code:

const myBackslash = `\\`;
console.log(myBackslash.charCodeAt(0)); // 92

并确保您实际上没有得到 \＼ ＼ （即双反斜杠），请检查长度：

And to make sure you are not actually getting \\ (i.e. a double-backslash), check the length:

console.log(myBackslash.length); // 1

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