OK, I see. Thanks a lot.

Cheers, =)

，Felipe Almeida Lessa <felipe.lessa@gmail.com>撰写：
> On Thu, May 19, 2011 at 11:05 AM, jianqiuchi@gmail.com> wrote:
>
> > I have a question about the cost of list comprehension and map function.
>
> >
>
> > For example, I have a list of Double and I want to do lots of calculation on
>
> > it. There are two ways to do that:
>
> > 1. [x ** 3 | x
> > 2. map (flip (**) 3) list
>
> > I am wondering if the cost of using them could be very different and why.
>
>
>
> List comprehensions are just syntatic sugar. You should expect both
>
> (1) and (2) to be exactly the same when compiling.
>
>
>
> Cheers, =)
>
>
>
> --
>
> Felipe.
>
>