why wont $i increment?

misterperl has asked for the wisdom of the Perl Monks concerning the following question:

I have this expression:

delete $data->{"exclude-$k{$_->{name}}-$i++"} for @a;

which runs @a times as expected in dbg, but $i remains at it's initial value? Why doesn't $i++ increment each time?

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Re: why wont $i increment? by Corion (Patriarch) on Sep 08, 2023 at 12:21 UTC
Because `"$i++"` is a string consisting of the value of `$i` and then `++`. It is not a Perl expression. What you want might be `delete $data->{"exclude-$k{$_->{name}}-" . $i++} for @a;` [download]	[reply] [d/l] [select]
Re^2: why wont $i increment? by misterperl (Friar) on Sep 08, 2023 at 13:22 UTC
ahh I see that now makes sense TY I voted++ you!	[reply]