HomeSYNOPSIS
key = table.reverseLookup(tbl, value)
DESCRIPTION
Does a linear search of tbl for an entry with the value value. Returns the key of the first
value found.
RETURN VALUE
Returns the key of the first value that was found, or nil if no value matches value.
NOTES
This function does a linear walk of the table. For big tables this can be slow. Think about restructuring your table design if you need to use this function often.
If the table contains more than one entry that matches value, only one key is returned. It is undefined which of the multiple keys is returned.