[SR-Users] how to delete key from htable?

[Juha Heinanen]

Juha Heinanen writes:

> > assigning $null to $sht(...) will remove the item from hash table.
> 
> Ok thanks.  I tried to find about that in pv wiki.  I'll check again and
> if is is not mentioned, I'll add it.

I added note about $null assignment.  While doing it, I noticed that
there is nothing on the wiki page about accessing array keys entries.

-- Juha