Editing Return statement (section)

==Syntax==
Return statements come in many shapes. The following syntaxes are most common:

{| class="wikitable"
|-
! Language
! Return statement
! If value omitted, return
|-
| [[Ada (programming language)|Ada]], [[Bourne shell]],{{efn|in the Bourne shell, only integers in the range 0-255 may be returned<ref>{{cite web |url=https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#return |title=return - return from a function or dot script |work=Single UNIX Specification}}</ref>}} [[C (programming language)|C]], [[C++]], [[Java (programming language)|Java]], [[PHP]], [[C Sharp (programming language)|C#]], [[JavaScript]], [[D (programming language)|D]]
| <syntaxhighlight lang="c">return value;</syntaxhighlight>
| In the Bourne shell, exit value of the last command executed in the function

In C<ref name=msc>{{cite web |url=https://learn.microsoft.com/en-us/cpp/c-language/return-statement-c |title=return Statement (C) |website=[[Microsoft Docs]]|date=25 January 2023 }}</ref> and C++,<ref name=mscpp>{{cite web |url=https://learn.microsoft.com/en-us/cpp/cpp/return-statement-cpp |title=return Statement (C++) |website=[[Microsoft Docs]] |date=3 August 2021 }}</ref> [[undefined behavior]] if function is value-returning

In PHP,<ref>{{cite web|title=PHP: return - Manual |url=http://www.php.net/manual/en/function.return.php |work=PHP Manual |publisher=The PHP Group |access-date=26 March 2013 }}</ref> returns <code>NULL</code>

In Javascript,<ref>{{cite web |title=Return - Javascript |url=https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/return |work=MDN Javascript Reference |publisher=Mozilla Developer Network |access-date=27 March 2013 }}</ref> returns the value [https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/undefined <code>undefined</code>]

In Java and C#, not permitted if function is value-returning
|-
| [[BASIC]]
| <syntaxhighlight lang="qbasic">RETURN</syntaxhighlight>
| 
|-
| [[Lisp (programming language)|Lisp]]
| <syntaxhighlight lang="lisp">(return value)</syntaxhighlight>
| Last statement value
|-
| [[Perl]], [[Ruby (programming language)|Ruby]]
| <syntaxhighlight lang="perl">return @values;
return $value;
return;</syntaxhighlight>
or a contextual return sequence
| Last statement value
|-
| [[PL/I]]
|
 return(expression);
 return;
| [[Undefined behavior]] if procedure is declared as returning a value
|-
| [[Python (programming language)|Python]]
| <syntaxhighlight lang="python">return value</syntaxhighlight>
| <code>None</code><ref name=python/>
|-
| [[Smalltalk]]
| <syntaxhighlight lang="smalltalk">^ value</syntaxhighlight>
| 
|-
| [[Tcl]]
| <syntaxhighlight lang="Tcl" class="nowrap">return
return $value
return -code error "Error message"</syntaxhighlight>
or some more complicated combination of options
| Last statement value
|-
| [[Visual Basic .NET]]
| <syntaxhighlight lang="vbnet">Return value</syntaxhighlight>
| 
|-
| [[Windows PowerShell]]
| <syntaxhighlight lang="ps1">return value;</syntaxhighlight>
| Object
|-
| [[x86 assembly]]
| <syntaxhighlight lang="asm">ret</syntaxhighlight>
| Contents of eax register (by conventions)
|}

In some [[assembly language]]s, for example that for the [[MOS Technology 6502]], the mnemonic "RTS" (ReTurn from Subroutine) is used.