how to delete a hash key...

[kyonides]

you selected in a selectable window? I mean, I created a menu that would list all the hash keys and doesn't show their values.

It wasn't necessary to show the values, I just wanted to let the player delete a hash key without typing a specific id number, an id that should be equal to the hash key he wants to delete. So let's say the player selects the third key like in this example:
______
| ID 1 |
| ID 2 |
| ID 3 | <<
| ID 4 |
______

In this case the 3rd key should be deleted. I know about the delete method: some_hash.delete(3), but the player is not supposed to type any number so the program should look for one on its own.

How should I delete a single key then?

 

[poccil]

I find your request different to follow.  If you're trying to search through a hash for a certain ID according to the index (position) in the hash, then you should know that hashes are unpredictable in how they order keys within the hash, so a search by index is not always reliable. 

Also, a hash is appropriate only if the keys in the hash can be strings as well as numbers.  Otherwise, an array is more appropriate.

 

[bedi nik bzez emak]

;D

 

[kyonides]

well, yes, I needed to create arrays instead. Thanks for your help.