map
map {block} list map expr, list
Evaluates the block
or
expr
for each element of
list
(locally setting $_
to each element) and returns the list
value composed of the results of each evaluation. It evaluates
block
or
expr
in a list context, so each element
of list
may produce zero, one, or more
elements in the returned value. These are all flattened into one
list. For instance:
@words = map { split ' ' } @lines;
splits a list of lines into a list of words. Often, though, there is a one-to-one mapping between input values and output values:
@chars = map chr, @nums;
This statement translates a list of numbers to the corresponding characters.
18.118.0.145