Re: check undef

Use the defined function to check if something is (not) undef.

In perl-5.10 and later you can also use the smart-match operator:

if ($WCkey ~~ undef && $SCeky ~~ undef && ... ) {  }
[download]

Comment on Re: check undef Download Code

Replies are listed 'Best First'.
Re^2: check undef by srikrishnan (Beadle) on Jun 23, 2009 at 09:12 UTC
`why dont you try something like below if (! defined $WCkey) cheers srikrishnan` [download]	[reply] [d/l]
Re^3: check undef by Anonymous Monk on Jun 23, 2009 at 09:16 UTC
If I try that I get `Semicolon seems to be missing at 2 line 4. syntax error at 2 line 5, next token ??? Execution of 2 aborted due to compilation errors.` [download] Just kidding :D code tags intended for code/data/error messages	[reply] [d/l]