Easy question:
I am trying to understand how the map function works. Let's say we have an arbitrary list as such:
my @words = ('one-', 't-wo', 'three- fo-ur', 'five six se-ven');

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My goal is to remove all dashes and split the elements on white space, i.e. I want the new list to look like:

qw(one two three four five six seven)

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The question: (drum roll please)
why does this work:

print join("\n", map { $_ =~ s/-//g; split; } @words);

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and this one does not:
print join("\n", map { $_ =~ s/-//g } map { split } @words);

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I know it has something to do with what the right map statement returns: does it return a reference to an array or an array?

Thanks!

In reply to Fun with learning maps by jeffa

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