values of the data type. In statically typed languages, a nullable type is an option type,[citation needed] while in dynamically typed languages (where...

In statistical hypothesis testing, a type I error, or a false positive, is the rejection of the null hypothesis when it is actually true. For example...

Java, the null type is the universal subtype of reference types. null is the only value of the null type; and it can be cast to any reference type. However...

programming, is called nullable types (often expressed as A?). The core difference between option types and nullable types is that option types support nesting...

In SQL, null or NULL is a special marker used to indicate that a data value does not exist in the database. Introduced by the creator of the relational...

value is null. In Go, the unit type is written struct{} and its value is struct{}{}. In PHP, the unit type is called null, which only value is NULL itself...

compared to nullable types and to the Nothing value in an option type. A null pointer should not be confused with an uninitialized pointer: a null pointer...

struct (for struct types) with all its members initialised to null/0/NO/zero-initialised struct is returned. Instead of using a null reference to convey...

Null modem is a communication method to directly connect two DTEs (computer, terminal, printer, etc.) using an RS-232 serial cable. The name stems from...

Boolean type. In SQL, which uses a three-valued logic for explicit comparisons because of its special treatment of Nulls, the Boolean data type (introduced...