Javascript replace "\\" to "\"

Question

How can I replace in my string \\ to \? For example, I want to convert RegExp('\\\\b') to RegExp('\\b'). I've tried:

 mystring.replace('\\','\'');

Possible duplicate of [JavaScript backslash (\‌) in variables is causing an error](http://stackoverflow.com/questions/3903488/javascript-backslash-in-variables-is-causing-an-error) — nicael, Aug 06 '16 at 13:59
Its not duplicated, I just need to replace, is there anyway to it? — Tiago Castro, Aug 06 '16 at 14:11

score 3 · Answer 1 · answered Aug 06 '16 at 14:01

3

If you need to replace all of the occurrences of two backslashes in a row into a single backslash, you use a regular expression with the g flag. Because backslashes are special in regular expressions, you have to escape them (with another backslash). You also have to use the return value of replace:

var str = "Here: \\\\ and here \\\\";
console.log(str);
str = str.replace(/\\\\/g, "\\");
console.log(str);

answered Aug 06 '16 at 14:01

T.J. Crowder

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can't we replace with empty string – Nageshwar Reddy Pandem Aug 06 '16 at 14:10
It just work when I have "\\\\" if I have just 2 slashes it didnt work /: – Tiago Castro Aug 06 '16 at 14:35
@TiagoCastro: If you have just two backslashes in a string literal, you have **one** backslash in the string, not two. See [this answer](http://stackoverflow.com/a/3903661/157247) on the question nicael pointed to. – T.J. Crowder Aug 06 '16 at 14:56

Javascript replace "\\" to "\"

1 Answers1