What is a nil value in Lua?
Also question is, what is nil value?
The nil value. The nil value is used to express the notion of a “lack of an object”. It's also used by the Garbage Collector — which implements a mark-and-sweep algorithm — to decide if an object should be destroyed or not. Unlike other languages, the nil value isn't used to express emptiness, false or zero.
Also Know, what does nil mean in coding?
In general use, nil (a contraction of Latin "nihil") means "nothing" or the absence of something. Sometimes nil is used to mean the number zero (0). In programming, nil refers to an empty set or a list containing no entries. In some usages, nil is interchangeable with null.
Well, nil is a special Ruby object used to represent an “empty” or “default” value. It's also a “falsy” value, meaning that it behaves like false when used in a conditional statement.