http://qs1969.pair.com?node_id=11140008


in reply to Re: One-liner to join keys on a two-dimensionnal hash ?
in thread One-liner to join keys on a two-dimensionnal hash ?

OP here!
Thanks a lot for your help, I didn't know that map could be used such a way (i.e. having an output instead of altering every item in a list)..
Have a greet day!