Question regarding duplicate __proto__ properties

Nicholas C. Zakas standards at
Sat Nov 29 15:38:26 PST 2014

In Rev 28, B.3.1 it states:


    It is a Syntax Error
    ifPropertyNameListofPropertyDefinitionListcontains any duplicate
    entries for|"__proto__"|and at least two of those entries were
    obtained from productions of the

I noted that the duplicate name restriction was eliminated back in 
July[1] and was just wondering if __proto__ is indeed a special case?



Nicholas C. Zakas

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the es-discuss mailing list