Functions is an actively used design pattern created in 2007. In computer programming, a subroutine is a sequence of program instructions that performs a specific task, packaged as a unit. This unit can then be used in programs wherever that particular task should be performed. Subprograms may be defined within programs, or separately in libraries that can be used by many programs. Read more on Wikipedia...

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  • the Functions wikipedia page
  • Functions first appeared in 2007
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Languages without Functions include css

Languages with Functions include javascript, php

Example from javascript:

function helloWorld() {console.log("hi")}

Last updated February 18th, 2020

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