Return to function, fun, Reserved Words - Keywords, Programming Glossary

• What programming languages support the Reserved Word func. Answer in MediaWiki syntax with the URL of the official documentation for each language reference.

Go is the only programming language that specifically used the func reserved word:

• Golang: https://golang.org/ref/spec#Function_declarations - Go Documentation

In Go, the func keyword is used to declare functions. You can find more details about its usage in the Go documentation: https://golang.org/ref/spec#Function_declarations.

Snippet from Wikipedia: Function (computer programming)

In computer programming, a function (also procedure, method, subroutine, routine, or subprogram) is a callable unit of software logic that has a well-defined interface and behavior and can be invoked multiple times.

Callable units provide a powerful programming tool. The primary purpose is to allow for the decomposition of a large and/or complicated problem into chunks that have relatively low cognitive load and to assign the chunks meaningful names (unless they are anonymous). Judicious application can reduce the cost of developing and maintaining software, while increasing its quality and reliability.

Callable units are present at multiple levels of abstraction in the programming environment. For example, a programmer may write a function in source code that is compiled to machine code that implements similar semantics. There is a callable unit in the source code and an associated one in the machine code, but they are different kinds of callable units – with different implications and features.

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