Question about regex and date formatting

[Älphä Blüë]

I'm trying to check whether yyyy-dd-mm in a string or date is true.

I've tried:

date = "2009-06-01"
date =~ /^\d{4}-\d{2}-\d{2}$/

returns => 0

It should return true. What am I missing here?

 

[Greg Willits]

I'm trying to check whether yyyy-dd-mm in a string or date is true.

I've tried:

date = "2009-06-01"
date =~ /^\d{4}-\d{2}-\d{2}$/

returns => 0

It should return true. What am I missing here?

That's the correct response. =~ return the starting position of the
string that was matched. If there is no match it returns nil.

-- gw

 

[Michael Kohl]

date =3D "2009-06-01"
date =3D~ /^\d{4}-\d{2}-\d{2}$/

returns =3D> 0

Remember that 0 in Ruby is not false, only 'nil' and false are. 0 is
the index of where in your string your match starts. Your RegEx is ok:
#<MatchData "2009-06-01">

Also this little change should make it obvious what happens:
=3D> 9

HTH,
Michael

--=20
Il pinguino ha rubato il mio lanciafiamme.

Blog: http://citizen428.net/
Twitter: http://twitter.com/citizen428

 

[Älphä Blüë]

Ah I didn't realize that. I thought 0 meant false. I appreciate the
answer and the tips..