Hi,

In message "Re: Preserve insert order in a Hash"
    on Thu, 18 Sep 2008 18:54:20 +0900, "Thomas B." <tpreal / gmail.com> writes:

|Could anybody explain why this feature was added?

Useful for some cases, especially for keyword arguments.

|Isn't it going to slow down the operations on the Hash?

No. hash reference operation does not touch order information, only
for iteration.  Memory consumption increased a bit.

							matz.