[Haskell-cafe] Converting IO [XmlTree] to [XmlTree]

[Luke Palmer]

On Tue, Apr 14, 2009 at 9:01 AM, Cristiano Paris <frodo at theshire.org> wrote:

> On Tue, Apr 14, 2009 at 4:54 PM, rodrigo.bonifacio
> <rodrigo.bonifacio at uol.com.br> wrote:
> > Dear Sirs,
> >
> > I guess this is a very simple question. How can I convert IO [XmlTree] to
> > just a list of XmlTree?
>
> Quick and dirty answer: unsafePerformIO.


Please don't say that.  He's a beginner.

You realize that the path of least resistance will be to use it, right?

You see why that's not a good thing?

Even experts don't use this function.

(To the O.P.:  don't use it)

Luke



>
>
> That's an easy finding on Hoogle:
>
> http://www.haskell.org/hoogle/?hoogle=IO+a+-%3E+a
>
> Anyhow, as the name suggest, the function is "unsafe", so you better
> know what you're doing.
>
> Bye,
>
> Cristiano
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