Replace '/' with '-'

Question

I am trying to change the format of a date in a string from mm/dd/yyyy to mm-dd-yyyy.

I have tried using the following but it does not work

str.replace(///g,"-");

use for-loop, it would work faster than regular expression. – Ivan Kuckir Jun 07 '13 at 11:15 — Ivan Kuckir, Jun 07 '13 at 11:15

score 3 · Answer 1 · answered Jun 07 '13 at 10:34

3

Two problems :

you need to escape the / in the regex
replace returns a new string and doesn't change the old one (strings are immutable)

Use

str = str.replace(/\//g, "-")

answered Jun 07 '13 at 10:34

Denys Séguret

score 3 · Accepted Answer · answered Jun 07 '13 at 10:34

3

Since / delimits the regular expression, if you want to use a / character as data within one, you must escape it:

/\//g

answered Jun 07 '13 at 10:34

Quentin

But this '//' ends up commenting all the thing following g.. – Pranay Jun 07 '13 at 11:02
@user2130674 — No, it doesn't. It might look that way if you have a syntax highlighter that doesn't understand JavaScript properly. – Quentin Jun 07 '13 at 11:03

Tukuna · Answer 3 · 2013-06-07T11:51:58.257

0

it works.

'12/5/13'.replace(/\//g, '-');

edited Jun 07 '13 at 11:51

answered Jun 07 '13 at 10:40

Tukuna

3 Answers3