• values of the data type. In statically typed languages, a nullable type is an option type,[citation needed] while in dynamically typed languages (where...
    8 KB (704 words) - 02:53, 24 July 2024
  • 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...
    31 KB (4,461 words) - 10:04, 18 September 2024
  • 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...
    9 KB (996 words) - 23:49, 5 September 2024
  • programming, is called nullable types (often expressed as A?). The core difference between option types and nullable types is that option types support nesting...
    13 KB (1,310 words) - 21:09, 13 September 2024
  • Thumbnail for Null (SQL)
    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...
    62 KB (7,601 words) - 02:41, 24 July 2024
  • 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...
    9 KB (1,163 words) - 16:18, 25 May 2024
  • 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...
    15 KB (1,918 words) - 19:19, 5 September 2024
  • 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...
    22 KB (2,803 words) - 18:51, 7 August 2024
  • Thumbnail for Null modem
    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...
    14 KB (1,520 words) - 03:42, 15 June 2024
  • Thumbnail for Boolean data type
    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...
    27 KB (2,991 words) - 06:51, 1 September 2024