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Re: [css3-animations] What does animation-fill-mode do when animation-iteration-count is zero?

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Mon, 6 Feb 2012 01:56:08 -0800
Message-ID: <CAAWBYDCZJkzD1cPCSry2TKzN5f37fFTD+Lc+NWQ+t8N0sOAJTg@mail.gmail.com>
To: Boris Zbarsky <bzbarsky@mit.edu>
Cc: www-style@w3.org
On Sun, Feb 5, 2012 at 6:29 AM, Boris Zbarsky <bzbarsky@mit.edu> wrote:
> On 2/5/12 9:11 AM, Sylvain Galineau wrote:
>>
>> I also don't understand why it's important to avoid a discontinuity on
>> something
>> that's unlikely to be iterated on.
>
>
> It doesn't matter whether it gets iterated.  It's more important whether
> someone will ever compute a value for it, especially in JavaScript. Given
> that computation in JS happens on floating-point numbers and that such
> computation is subject to rounding error, any sort of discontinuous behavior
> means that in some conditions behavior will suddenly depend on something
> like order of addition operations when adding up the elements of an array.
>  And then web developers will (rightly, imo) curse whoever came up with such
> a setup.

Yes, this.


On Sun, Feb 5, 2012 at 9:44 AM, Dean Jackson <dino@apple.com> wrote:
> I'd also be ok with disallowing values < 1, if that makes you or the implementors
> there any happier :)

I'm also okay with this, though if we're accepting that non-integer
iteration counts are useful, I think that counts between 0 and 1 are
fine.

~TJ
Received on Monday, 6 February 2012 09:57:02 GMT

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