Re: Re: Re: playing with map

[merlyn]

If act_on returns a list then all members are pushed into @old.

In a list context, act_on must return a list! And map (and the map-equivalents) are providing list context.

-- Randal L. Schwartz, Perl hacker

[mirod]

OK, I was not clear. I should have written "if act_on returns a list with more than one element" then the original code is not equivalent to a map (and I can play with fonts too ;--). If act_on returns a scalar or a 1 element list then the original code behaves the same way as a map.