Convert an escaped backslash to be an escaping backslash-CodePudding

I have a string from the server that the backslash are escaped:

const s = 'text\\n'

Because the backslashes are escaped, the backslash that is supposed to escape the new line is ignored. So my string doesn't have a new line as it should.

I would like to have my variable s to contain: text\n

I test this using length property:

'text\\n'.length === 6;  // this is wrong
'text\n'.length === 5;   // this is correct

How do I convert the wrong string to be the correct string?

CodePudding user response：

'text\\n'.replaceAll('\\n', '\n')

CodePudding user response：

If all of your backslashes are escaped, you can just replace all of two backslashes \\ with one backslash \ to revert the string to its original form

const s = 'text\\n';
const regex = /\\/g;
console.log(s.replaceAll(regex, '\\')); // note that the 2nd arg is '\\', this is for escaping the '\' character
// return "text\n"