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Re^6: write and read the same file not display the output

by Kenosis (Priest)
on Sep 05, 2012 at 04:53 UTC ( #991736=note: print w/ replies, xml ) Need Help??


in reply to Re^5: write and read the same file not display the output
in thread write and read the same file not display the output

$1 is initialized via regex captures which use parentheses. For example, in the following:

my $string = 'Frank'; my $name = 'Frank'; print $1 if $string =~ /^$name$/; print $1 if $string =~ /^($name)$/;

The first print statement produces:

Use of uninitialized value $1 in...

Whereas, the second print shows the value in $1:

Frank


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Re^7: write and read the same file not display the output
by Rudolf (Monk) on Sep 05, 2012 at 13:09 UTC

    ahh I see, thats valuable information I lost along the way haha thank you for taking the time to explain. Enjoy your week! -Rudolf

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