Clear bug in step 17

Allen Wirfs-Brock Allen.Wirfs-Brock at
Mon Sep 21 15:27:44 PDT 2009

Yes, arguably that step isn't needed at all because step 20.b implicitly sets the length

>-----Original Message-----
>From: es-discuss-bounces at [mailto:es-discuss-
>bounces at] On Behalf Of Jeff Walden
>Sent: Monday, September 21, 2009 2:32 PM
>To: es-discuss at
>Subject: Clear bug in step 17
>17. Call the [[DefineOwnProperty]] internal method of A with arguments
>"length", Property Descriptor
>{[[Value]]: n + 1, [[Writable]: true, [[Enumerable]]: true,
>[[Configurable]]: true}, and true.
>This is attempting to define an enumerable, configurable length property
>on an array, which will throw an exception trying to change the
>configurability of a non-configurable property.
>es-discuss mailing list
>es-discuss at

More information about the es-discuss mailing list