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In certain computer programming languages, the Elvis operator, often written ?:, is a binary operator that returns the evaluated first operand if that operand evaluates to a value likened to logically true (according to a language-dependent convention, in other words, a truthy value), and otherwise returns the evaluated second operand (in which case the first operand evaluated to a value ...
The null coalescing operator is a binary operator that is part of the syntax for a basic conditional expression in several programming languages, such as (in alphabetical order): C# since version 2.0, Dart since version 1.12.0, PHP since version 7.0.0, Perl since version 5.10 as logical defined-or, PowerShell since 7.0.0, and Swift as nil-coalescing operator.
The International Radiotelephony Spelling Alphabet or simply Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet, is the most widely used set of clear-code words for communicating the letters of the Roman alphabet. Technically a radiotelephonic spelling alphabet, it goes by various names, including NATO spelling ...
This list contains the mobile country codes and mobile network codes for networks with country codes between 600 and 699, inclusively – a region that covers Africa and the surrounding islands (excluding the Canary Islands and Madeira, which are part of Spain and Portugal, respectively). National operators
Operator, Operator. " Operator, Operator " (also titled "Heart on the Line (Operator, Operator)") is a country music song co-written and recorded by Larry Willoughby, a cousin of country music singer Rodney Crowell, and Janet Willoughby. He released the song in 1983 from the album Building Bridges, and took it to number 65 on the Hot Country ...
The Kirsch operator or Kirsch compass kernel is a non-linear edge detector that finds the maximum edge strength in a few predetermined directions. It is named after the computer scientist Russell Kirsch .
A production code number, also known as the production code ( PC) or episode code, is an alphanumeric designation used to uniquely identify episodes within a television series. As each studio can freely generate its own PC format, it cannot be used universally to identify the show and episode. While, in general, television episodes are filmed ...
This is a list of all airline codes. The table lists the IATA airline designators , the ICAO airline designators and the airline call signs (telephony designator). Historical assignments are also included for completeness.