Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Re^2: How come undef eq '' ??

by muba (Priest)
on Jan 30, 2013 at 15:55 UTC ( #1016092=note: print w/ replies, xml ) Need Help??


in reply to Re: How come undef eq '' ??
in thread How come undef eq '' ??

Because eq is for string comparisons. undef stringifies to "", 0 stringifies to "0", and "" ne "0".

Change eq to == and it will print "In".


Comment on Re^2: How come undef eq '' ??
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1016092]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (16)
As of 2014-09-02 14:33 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    My favorite cookbook is:










    Results (24 votes), past polls