(Delphi ActiveX) JSON AppendArrayCopy Example

Demonstrates the AppendArrayCopy function.

Note: This example requires Chilkat v9.5.0.82 or above.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: TChilkatJsonObject;
jarr: TChilkatJsonArray;

begin
json := TChilkatJsonObject.Create(Self);
json.Load('{ "name": "John", "marbles": 100 }');

jarr := TChilkatJsonArray.Create(Self);
jarr.Load('[ 1, 2, 3, "apple", "orange", [ 10, 20, 30 ], { "name": "Alfred"} ]');

// Copy the contents of jar to a new array member named "stuff".
json.AppendArrayCopy('stuff',jarr.ControlInterface);

Memo1.Lines.Add(json.Emit());
// Expected output is:  {"name":"John","marbles":100,"stuff":[1,2,3,"apple","orange",[10,20,30],{"name":"Alfred"}]}

// Note: The contents of the array were copied.
// If we modify the contents of jarr, it does not modify the array contained within "json" because it is a separate copy.
// For example:
jarr.AddIntAt(-1,2020);
Memo1.Lines.Add(jarr.Emit());
// Expected output: [1,2,3,"apple","orange",[10,20,30],{"name":"Alfred"},2020]

Memo1.Lines.Add(json.Emit());
// Remains unchanged: {"name":"John","marbles":100,"stuff":[1,2,3,"apple","orange",[10,20,30],{"name":"Alfred"}]}
end;