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--- en:function [2016/01/01 22:41]
127.0.0.1 external edit
+++ en:function [2016/08/12 13:01]
admin
@@ Line 3: / Line 3: @@
 ==== Format ====
 **function** function_name ( //variable_list// )\\
-(tab)//statements//\\
+(tab)[[programsyntax|statement(s)]]\\
-**end function**
-**function** function_name$ ( //variable_list// )\\
-(tab)//statements//\\
 **end function**
 ==== Description ====
-Create a function that will receive zero or more values, process those values and return either a numeric or string value.  Return values are set by assigning the name of the function and executing a [[Return|Return]] statement or allowing the //End Function// statement to be executed.  All variables used within the function will be local to the function and will not change the values in the calling code.
+Create a function that will receive zero or more values, process those values and return either a value.  Strings, integers, and floating point numbers may be returned by a function and are returned by executing a [[Return|Return]] statement with a value ovby assigning the name of the function a value and allowing the //End Function// statement to be executed.  All variables used within the function will be local to the function and will not change the values in the calling code.
-In many structured languages the return value of a function is set using the [[return|Return]] statement.  In BASIC-256 the returned value of a function is set by assigning the function name the value and either executing the [[Return|Return]] statement or reaching the end of the function.  A numeric function has the default return value of zero (0) and a string function has the default value of a zero length string ("").
-Subroutine variables may a list of zero or more, comma separated, numeric or string variables.  Arrays and variables may be passed by reference using the [[Ref|Ref]] definition.
+Function variables may a list of zero or more, comma separated, variables.  Arrays and variables may be passed by reference using the [[Ref|Ref]] definition.
-Functions should be defined at the bottom of your program, and can not be defined within another function, [[Subroutine|Subroutine]] or control block ([[if|If/Then]], [[do|Do/Until]], ...)
+Functions can be defined anywhere in your program, and can not be defined within another function, [[Subroutine|Subroutine]] or control block ([[if|If/Then]], [[do|Do/Until]], ...)
 ==== Example ====
 <code>
-print double$("Hello")
+print double("Hello")
+print double(9)
 print triple(3)
 end
-function double$(a$)
+function double(a)
-   double$ = a$ + a$
+   double = a + a
 end function
 function triple(b)
-   triple = b * 3
+   return b * 3
-   return
-   triple = 9999	# code never gets executed
 end function
 </code>
@@ Line 39: / Line 32: @@
 <code>
 HelloHello
 </code>
@@ Line 46: / Line 40: @@
 ==== History ====
 |0.9.9.1|New To Version|
+|1.99.99.|Removed variable/function type|

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