Delphi Basics : Concat command

Delphi Basics
Concat Function	Concatenates one or more strings into one string	System unit

function Concat ( const String1 {,String2 ...} : string ) : string;

Description

The Concat function concatenates (joins) strings String1, String2 ... together into one result string.

It is equivalent to the + operator, which is faster.

Related commands

Copy		Create a copy of part of a string or an array
Delete		Delete a section of characters from a string
Insert		Insert a string into another string
Move		Copy bytes of data from a source to a destination
StringOfChar		Creates a string with one character repeated many times
StringReplace		Replace one or more substrings found within a string
WrapText		Add line feeds into a string to simulate word wrap

Example code : Concatenate 3 words into a sentence

// Full Unit code.
// -----------------------------------------------------------
// You must store this code in a unit called Unit1 with a form
// called Form1 that has an OnCreate event called FormCreate.

unit Unit1;

interface

uses
  // The System unit does not need to be defined
  Forms, Dialogs;

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation
{$R *.dfm} // Include form definitions

procedure TForm1.FormCreate(Sender: TObject);
var
  result : string;

begin
  // Concatenate using the +
  result := 'Hello '+'cruel '+'World';
  ShowMessage(result);

  // Concatenate using the Concat function
  result := Concat('Hello ','cruel ','World');
  ShowMessage(result);
end;

end.

Hide full unit code

Hello cruel World
Hello cruel World