You can access only one element of the split result by using a list index.

my @new_array = map { (split /:/)[3] } @old_array;

Note that I have relied on split's default of splitting $_ when not provided with an explicit string. So the above is exactly equivalent to

my @new_array = map { (split /:/, $_)[3] } @old_array;

In reply to Re^3: Make array from field of another array by kennethk
in thread Make array from field of another array by Saved

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