Functions

A function is defined using the Function keyword:

Function {funcname}{typetag}( {params} ) 
     {statements} 
End Function

• {funcname} is any valid identifier.

• {typetag} is the type of value returned by the function. If {typetag} is omitted, the function returns an integer value by default.

• {params} is a comma-separated list of variables which is passed to the function when it is called, each parameter may be given an optional type tag. Parameters are always local.

A function may use the Return statement to return a result. Return may optionally be followed by an expression.

If there is no Return statement, or a Return without any expression is used, the function returns a default value of 0 for numeric functions, an empty string ("") for string functions, or a Null object for custom-type functions.