如何替换字符串中的反斜杠美元符号

Question

I have a text where dollar sign is already escaped. How to replace \$ with $ ?

month=\$(date +%m)

becomes

month=$(date +%m)

Answer 1

Since backslash and dollar sign both have special meaning in a regexp, you need to escape both of them.

 let str = 'month=\\$(date +%m)'; console.log('before', str); str = str.replace(/\\\$/g, '$'); console.log('after', str);