ToPropertyDescriptor and [[DefineOwnProperty]], regarding Object.defineProperty

Jim Blandy jimb at
Mon Jun 1 13:48:23 PDT 2009

On 06/01/2009 01:31 PM, Jeff Walden wrote:
> Note the footnote: I was referring to the spec type, not to an object 
> describing a property descriptor provided by JS code.   That omitted 
> properties on such objects (even extension properties) be treated as 
> if they were set to their default values was precisely what I was 
> requesting.
Wouldn't this lose the ability to change individual attributes with a 
single call?

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