iteration order for Object

Erik Corry erik.corry at
Fri Mar 11 02:31:44 PST 2011

2011/3/11 Charles Kendrick <charles at>:
> All browsers that have ever had non-negligible market share have implemented
> order-preserving
> Objects - until Chrome 6.

Just to be clear:  Chrome 5 and before had a for-in ordering that
revealed internal optimization strategies.  From Chrome 6 and forward
the behaviour was made consistent.  There was never a version of
Chrome that consistently iterated numeric-keyed properties in
insertion order.

Erik Corry

More information about the es-discuss mailing list