Custom Routines (JavaScript and Delphi Prism Cross Reference Guide)

JavaScript uses functions and loosely typed parameters. Function definitions must come before their usage so the usual preference when adding JavaScript to HTML pages is to include them between the head tags.

function SayHello(pName) {
 document.write("Hello " + pName + "<br>");
}

function add(p1, p2) {
 var result;
 
 result = p1 + p2;
 return result;

}

 JavaScript Custom Routines (function)

In Prism, everything is within a class (just like with C#, VB.Net, and Java). So you create class methods using the method keyword. Alternatively, you can use procedure or function if you want the compiler to enforce returning or not returning a value.

[function/procedure] RoutineName : ReturnType; 

As with C++, your custom routine must come before it's first usage or you have to prototype it in the Interface section.

method Form1.IntroduceYourself;
begin
  MessageBox.Show("Hello, I do not have a name yet.");
end; 
 
procedure Form1.SayHello(pName: String);
begin
  MessageBox.Show("Hello " + pName);
end;

function Form1.Add(p1, p2 : Double): Double;
begin
  Result := p1 + p2;
end;

 Delphi Prism Custom Routines (method, procedure, function)