Null

Definition

Null is a special value in programming that represents the absence of a value or the lack of an assigned object. It is used to indicate that a variable does not currently have any valid data.

Related terms

Default Value: The default value is the initial value automatically assigned to variables if no other value is explicitly given.

Undefined: Undefined refers to a variable that has been declared but not yet assigned any specific value.

Empty String: An empty string is a string variable that contains no characters or spaces. It is represented by "" (double quotes with nothing inside).