[webkit-dev] Unprefixing Blob.webkitSlice() ?

[Darin Fisher]

Thanks for collecting and sharing this data.  It'll be interesting to see
how this evolves over time.
-Darin

On Sun, Aug 12, 2012 at 7:43 PM, Kinuko Yasuda <kinuko at chromium.org> wrote:

> As a quick follow-up, in Chrome 21 the usage histogram tells ~80% of slice
> call is still using webkitSlice (no wonder as unprefixed slice was rolled
> out just half a month ago).  Since we started showing a deprecation message
> I hope the number changes over time.
>
>           slice usage: 22.61%
> webkitSlice usage: 77.39%
>
>
>
> On Mon, Jun 11, 2012 at 3:55 PM, Kinuko Yasuda <kinuko at chromium.org>wrote:
>
>> On Mon, Jun 11, 2012 at 3:34 PM, Darin Fisher <darin at chromium.org> wrote:
>>
>>> Happy to see us support unprefixed too.  With other vendors on board, it
>>> seems like a straightforward addition to the platform.
>>>
>>> I'm not sure if you are proposing to also remove the prefixed form.  I'm
>>> not sure what it would take to remove the prefixed version.  We'd need some
>>> way to know when it is safe to remove it.  We could surely instrument the
>>> code to measure its use relative to the unprefixed form once it is widely
>>> deployed.
>>>
>>
>> We've been shipping the prefixed version for a year now (in Chrome 11-19
>> and in Safari 5), so I propose keeping the prefixed version too for now,
>> but to start showing a deprecation message to encourage migration.
>>
>> -Darin
>>>
>>>
>>> On Sun, Jun 10, 2012 at 11:17 PM, Kinuko Yasuda <kinuko at chromium.org>wrote:
>>>
>>>> Hi WebKit folks,
>>>>
>>>> We've been vendor-prefixing Blob.slice() since we changed the semantics
>>>> of slice() to make it alike Array.slice, i.e. from "start, length" to
>>>> "start, end" semantics in r83873 [1].  The non-prefixed version had only
>>>> been shipped in Chrome and must have helped apps migrate into the new
>>>> semantics.
>>>> However Mozilla has now unprefixed it since Gecko/FireFox 13.0 [2],
>>>> Opera said they are going to unprefix it with the new semantics [3] and IE
>>>> compatibility test has a set of Blob.slice tests which require unprefixed
>>>> slice [4].
>>>>
>>>> Maybe it's becoming a good time to unprefix slice() again?
>>>> https://bugs.webkit.org/show_bug.cgi?id=78111
>>>>
>>>> [1] http://trac.webkit.org/changeset/83873
>>>> [2]
>>>> https://developer.mozilla.org/en/DOM/Blob#Notes_on_the_slice()_implementations
>>>> [3] https://bugs.webkit.org/show_bug.cgi?id=78111
>>>> [4] http://samples.msdn.microsoft.com/ietestcenter/#fileapi
>>>>
>>>> Kinuko
>>>>
>>>>
>>>> _______________________________________________
>>>> webkit-dev mailing list
>>>> webkit-dev at lists.webkit.org
>>>> http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
>>>>
>>>>
>>>
>>
>
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