Things like this aren't in the man-page

grep accepts any code in the block. It doesn't have to be a regex. grep is useful for filtering out items from a list, while map is useful for transforming a list.

The idea of using grep on a list without naming _that_ list as the argument to grep would never have occurred to me.

It's an concept I picked up on PerlMonks too :)

In reply to Re^3: lsearch for perl? by ikegami
in thread lsearch for perl? by matt.tovey

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