Delphi DLL

JSON AppendArrayCopy Example

Demonstrates the AppendArrayCopy function.

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

Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: HCkJsonObject;
jarr: HCkJsonArray;

begin
json := CkJsonObject_Create();
CkJsonObject_Load(json,'{ "name": "John", "marbles": 100 }');

jarr := CkJsonArray_Create();
CkJsonArray_Load(jarr,'[ 1, 2, 3, "apple", "orange", [ 10, 20, 30 ], { "name": "Alfred"} ]');

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

Memo1.Lines.Add(CkJsonObject__emit(json));
// 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:
CkJsonArray_AddIntAt(jarr,-1,2020);
Memo1.Lines.Add(CkJsonArray__emit(jarr));
// Expected output: [1,2,3,"apple","orange",[10,20,30],{"name":"Alfred"},2020]

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

CkJsonObject_Dispose(json);
CkJsonArray_Dispose(jarr);

end;