- From: Glen Huang <curvedmark@gmail.com>
- Date: Fri, 20 Feb 2015 18:46:25 +0800
- To: Ms2ger <ms2ger@gmail.com>
- Cc: public-test-infra@w3.org
Ah, thanks for the heads up. I guessed somewhere in the spec, it requires undefined to be treated the same as missing for optional arguments.
Looks like blink and webkit are doing it wrong right now.
I will give web idl a through read when I got the time. Hope I won’t send a lot of incorrect tests to embarrass myself. :)
> On Feb 19, 2015, at 3:53 PM, Ms2ger <ms2ger@gmail.com> wrote:
>
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> On 02/19/2015 05:25 AM, Glen Huang wrote:
>> @Ms2ger
>>
>> Glad to hear they can be merged.
>>
>> As for classList.force, since we are explicitly passing an
>> ECMAScript value to it, according to WebIDL, it will first be
>> converted to boolean by using ToBoolean(undefined), which returns
>> false. So toggle("name", undefined) should actually remove the
>> class and not toggling it. But I haven't go through WebIDL very
>> throughly, so I'm not absolutely sure that's correct, will go
>> through it more carefully when I'm writing the tests.
>
> Off-list, since not really relevant: the overload resolution algorithm
> <https://heycam.github.io/webidl/#dfn-overload-resolution-algorithm>
> treats undefined as triggering the default.
>
> HTH
> Ms2ger
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Received on Friday, 20 February 2015 10:46:57 UTC