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good question.. hope I'm not overstepping my bounds by responding..(and I hope I'm right!)

map { $_ =~ s/\D//g; $_ } split(':',(split(' ',$_))[-1]);
is equivalent to
my @split_results = split(':',(split(' ',$_))[-1]); map { $_ =~ s/\D//g; $_ } @split_results;
because map BLOCK LIST has to run the BLOCK for each LIST element (setting each LIST value to $_), it must know what is in that LIST. Hence, the execution of the split(s) before the execution of the BLOCK (and therefore the map).

In reply to Re^4: How do i extract 3 variables from each line in a file, and print them to a new file by Transient
in thread How do i extract 3 variables from each line in a file, and print them to a new file by my_perl

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