table.KeyFromValue

From GMod Wiki

Function
Syntax	table.KeyFromValue( Table table, Var value ) Where is this used?
Description:
Returns the value's index in the specified table, returns nothing if the value wasn't found.
Returns:	Var key
Part of Library:	table
Realm:
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Example

Description	Prints the index of "Cereals".
Used on
Code	local food = {"Milk", "Chocolate", "Cereals", "Bacon"}   print(table.KeyFromValue(food, "Cereals"))
Output	3

Additional Notes

• The "value" parameter can be any data type, but must be the same data type within the table.
• The returned key might be of any type.