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Re^2: new keyword "size" to avoid scalar trap ? ( scalar @array != scalar(LIST) )

by LanX (Canon)
on Dec 07, 2012 at 17:22 UTC ( #1007801=note: print w/ replies, xml ) Need Help??


in reply to Re: new keyword "size" to avoid scalar trap ? ( scalar @array != scalar(LIST) )
in thread new keyword "size" to avoid scalar trap ? ( scalar @array != scalar(LIST) )

> I don't see a need for it.

Honestly, did you immediately spot the problem in BUK's code?

Re: Idiom to return 0 or random number of array elements

UPDATE:

Do you really prefer explaining goatse "op"  =()= and turtle "op" @{[ ]} to newbes who simply need to count the elements a function returns?

UPDATE:

> I'd rather see them overload length to accept a hash, array or reference to a hash or array.

Then it's quite impossible to tell what length ($str) is supposed to return. 1 for the list-size or the char-size of $str?

Cheers Rolf


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Re^3: new keyword "size" to avoid scalar trap ? ( scalar @array != scalar(LIST) )
by roboticus (Chancellor) on Dec 07, 2012 at 20:11 UTC

    LanX:

    No, I didn't notice the error. And I've never used goatse, turtle or kite. Perhaps if I had, I'd see the need for it.

    As far as the practicality of what length $str is supposed to return, I didn't give it much thought. I was just expressing my color preference for new new shed out back. ;^)

    ...roboticus

    When your only tool is a hammer, all problems look like your thumb.

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