# from Jenda Krynicky
# on Saturday 24 November 2007 17:00:
>I mean ... WHY would anyone want to write
>
> print L(qw(a b c))->map(sub {"|$_|"})->join(' '), "\n";
>
>instead of
>
> print join( ' ', map {"|$_|"} qw(a b c)), "\n";
It is a flow from left to right rather than right to left. Each method
returns a list object, so extra map()s, grep()s, and etc just get
appended to the right -- as opposed to jumping back to the beginning of
the construct to add another transformation (and then messing with more
parenthesis.)
>(or in this particular case
> print "|", join( '| |', qw(a b c)), "|\n";
>)?
Well, that would be bad practice because you've repeated your separator
character and de-normalized the expression. If you just don't like the
example, feel free to write a better one.
--Eric
