Hash#values and Hash#keys order

[Alex Fenton]

Hi

Are Hash#keys and Hash#values guaranteed to return the entries in the same order? i.e. is the following always true?

hash.values == hash.values_at(*hash.keys )

It seems to work, but can I depend on this behaviour?

thanks
alex

 

[George Ogata]

Hi

Are Hash#keys and Hash#values guaranteed to return the entries in
the same order? i.e. is the following always true?

hash.values == hash.values_at(*hash.keys )

It seems to work, but can I depend on this behaviour?

In the current implementation, they will always be the same (assuming
the hash isn't modified between the #keys and #values calls). It
isn't documented AFAIK, so I don't know if you can depend on it in the
future. If you don't want to, perhaps you can use:

keys, values = *h.to_a.transpose