%r{\.(gif|jpg|png)$}i, What does the i do?

Martin Hawkins 1 post

v2, p85:
validates_format_of :image_url,
:with => %r{\.(gif|jpg|png)$}i,
:message => “must be a URL for a GIF, JPG, or PNG image”

What does the “i” do at the end of the second line? I’ve tried it without and it seems to run fine.

Sam Ruby 109 posts

It makes the regular expression case insensitive. With the i specified, the regular expression will match gif, GIF, Gif, gIf, etc.

2 posts, 2 voices