Lua find a key from a value

Question

I\'m working with this:

    chars = {
         [\"Nigo Astran\"]=\"1\",
         [\"pantera\"]=\"2\"
         }

   nchar = (chars[$name])+1

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Answer 1

I don't think there is anything more efficient than looping over the entries in the table using pairs and comparing the keys.

you can do that using something like this

function get_key_for_value( t, value )
  for k,v in pairs(t) do
    if v==value then return k end
  end
  return nil
end

Then you'd use it like this:

local k = get_key_for_value( chars, "1" )