"As far as I know, all of the functions provided by that module are implemented in C, so you also get a performance bonus."

Indeed, they are. List::Util also happens to make very efficient use of Perl's API (e.g. using multicall), allowing its functions to perform at speeds approaching Perl's built-in list operators (grep, map, sort).

"See also: List::MoreUtils"

This is also written in C (and also makes use of multicall), but has a fallback Perl implementation allowing it to be installed on machines lacking a C compiler.

If a function exists in both List::Util and List::MoreUtils (and because recent List::Util releases have been adding new functions, the overlap between them is growing), then prefer the List::Util one because it will be guaranteed to be implemented in C.

use Moops; class Cow :rw { has name => (default => 'Ermintrude') }; say Cow->new->name

In reply to Re^2: Can this script be Optimized? by tobyink
in thread Can this script be Optimized? by Anonymous Monk

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