[Webkit-unassigned] [Bug 209571] Function.length broken by Object.defineProperty and bind

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=209571

Yusuke Suzuki <ysuzuki at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #2 from Yusuke Suzuki <ysuzuki at apple.com> ---
(In reply to Andy Niccolai from comment #0)
> With the release of Safari 13.1 (and also verified in 13.2 Technical
> Preview), Function.length always returns zero after binding arguments to a
> function that has a custom name defined.
> 
> Repro JS Fiddle: https://jsfiddle.net/7s9yop23/
> 
> Repro code
> 
> const originalFn = (a, b) => a + b;
> Object.defineProperty(originalFn, 'name', {value: 'newFunctionName'});
> const renamedAndBoundFn = originalFn.bind(undefined, 1);
> 
> // expected: 1
> // actual: 0
> renamedAndBoundFn.length

Thanks for reporting!
This is fixed in https://bugs.webkit.org/show_bug.cgi?id=208497 :)

*** This bug has been marked as a duplicate of bug 208497 ***

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20200326/847ddaca/attachment-0001.htm>