In Javascript how can I check if a string contains \ (backslash) at the end of it, and if so remove it?

Question

Possible Duplicate:
Regex to remove last / if it exists as the last character in the string
Javascript: How to remove characters from end of string?

In Javascript how can I check if a string contains \ (backslash) at the end of it, and if so remove it? Looking for a regex solution.

Appreciate your time and help.

Please show more research efforts. Googling for "remove last character of string javascript regex" shows a lot results, including http://stackoverflow.com/q/7602301/427545 — Lekensteyn, May 29 '12 at 19:31

score 4 · Answer 1 · answered May 29 '12 at 19:31

if (myString.match(/\\$/)) { 
  myString = myString.substring(0, myString.length - 1);
}

The Regex '\$' Will match an escaped character '\' followed by the end of line. If this is a match, it runs the substring method to get everything but the last character.

As pointed out, in this case this can be simplified to:

myString = myString.replace(/\\$/, "");

(Thankyou @Lekensteyn for pointing it out)

I've left both answers up so one can see the methodology if removing the match is no longer the goal.

Can be simplified to `string = string.replace(/\\$/, "");` – Lekensteyn May 29 '12 at 19:33 — Lekensteyn, May 29 '12 at 19:33

score -1 · Answer 2 · edited May 29 '12 at 19:32

-1

I'd suggest:

var string = 'abcd\\';
if (string.charAt(string.length - 1) == '\\'){
    // the \ is the last character, remove it
    string = string.substring(0, string.length - 1);
}

References:

charAt().

edited May 29 '12 at 19:32

Lekensteyn

64,486
22
159
192

answered May 29 '12 at 19:31

David Thomas

249,100
51
377
410

right but what about the removing that last character if this is true? – user1052933 May 29 '12 at 19:32
1

Using the variable name `string` is asking for trouble / confusion with the native `String`. – Robin van Baalen Jan 31 '13 at 15:19

In Javascript how can I check if a string contains \ (backslash) at the end of it, and if so remove it?

2 Answers2