It's also worth noting that it can modify your original array in place
@a = ('bob','jane');
map {$_ = ucfirst($_)} @a;
This can be useful (or painful if you forget about it).
George
On Sunday, November 24, 2002, at 01:04 PM, Paul Johnson wrote:
On Sun, Nov 24, 2002 at 12:13:55PM -0500, Tanton Gibbs wrote:
So, the purpose of map is to change every element of an array in the
same
way and create a new array with those changed elements.
Quite. Whenever you need to create an list by performing an operation
on every element of another list, think C<map>.
But map can also do more. For each element of your original list you
can create zero, one or more elements in the result.
$ perl -le 'print map { ($_) x $_ } (0 .. 3)'
122333
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