Function - Revision history

JoeStrout: remove semicolons

2023-04-27T15:36:16Z

remove semicolons

SebNozzi: Link to section

2023-04-24T09:35:08Z

Link to section

SebNozzi: Type of function reference

2023-04-24T09:28:38Z

Type of function reference

JoeStrout: /* Function References */

2022-01-25T03:36:03Z

Function References

JoeStrout: /* Function References */

2022-01-25T03:32:44Z

Function References

JoeStrout at 03:32, 25 January 2022

2022-01-25T03:32:16Z

JoeStrout: Created page with "function is a keyword used to define a subprogram in MiniScript. The term "function" can also refer to such a subprogram. Category:Language..."

2020-02-20T04:26:49Z

Created page with "<c>function</c> is a keyword used to define a subprogram in MiniScript. The term "function" can also refer to such a subprogram. Category:Language..."

New page

<c>function</c> is a [[:Category:Keywords|keyword]] used to define a subprogram in MiniScript. The term "function" can also refer to such a subprogram.

[[Category:Language]]
[[Category:Keywords]]

{{stub}}

@@ Line 7: / Line 7: @@
 <ms>identifier = function(param1, param2, param3)
      // function body
-     return 42;
+     return 42
 end function</ms>
-Parameters may have default values.  If not otherwise specified, the default value of a parameter is [[null]].
+Parameters may have default values.  If not otherwise specified, the default value of a parameter is [[null]].  Default values must be literals (not expressions, variables, function calls, etc.).
 <ms>identifier = function(param1=1, param2="foo", param3)
      // function body
-     return 42;
+     return 42
 end function</ms>
@@ Line 21: / Line 21: @@
 <ms>identifier = function
      // function body
-     return 42;
+     return 42
 end function</ms>

@@ Line 24: / Line 24: @@
 end function</ms>
-Unlike some other languages, functions in MiniScript do not have names.  The <c>function... end function</c> structure returns a function reference; typically this is assigned to some variable, and then you can call the function via that variable.
+Unlike some other languages, functions in MiniScript do not have names.  The <c>function... end function</c> structure returns a [[#Function_References|function reference]]; typically this is assigned to some variable, and then you can call the function via that variable.
 == Calling a Function ==

@@ Line 43: / Line 43: @@
 # Use the <c>@</c> operator before the function identifier.  This (often read "address of") operator blocks the usual function invocation.  Example: <c>f = @someFunc</c>
 # Fetch the value out of a map using square-brackets indexing rather than dot syntax.  Example: <c>f = locals["someFunc"]</c>
 [[Category:Language]]
 [[Category:Keywords]]

@@ Line 42: / Line 42: @@
 # Use the <c>@</c> operator before the function identifier.  This (often read "address of") operator blocks the usual function invocation.  Example: <c>f = @someFunc</c>
-# Fet the value of a map using square-brackets indexing rather than dot syntax.  Example: <c>f = locals["someFunc"]</c>
+# Fetch the value out of a map using square-brackets indexing rather than dot syntax.  Example: <c>f = locals["someFunc"]</c>
 [[Category:Language]]
 [[Category:Keywords]]

@@ Line 41: / Line 41: @@
 Sometimes you want to get a function reference ''without'' actually invoking the function.  This can be done in two ways:
-# Use the `@` operator before the function identifier.  This (often read "address of") operator blocks the usual function invocation.  Example: <c>f = @someFunc</c>
+# Use the <c>@</c> operator before the function identifier.  This (often read "address of") operator blocks the usual function invocation.  Example: <c>f = @someFunc</c>
 # Fet the value of a map using square-brackets indexing rather than dot syntax.  Example: <c>f = locals["someFunc"]</c>
 [[Category:Language]]
 [[Category:Keywords]]