JSON superobject (4): add, delete, and modify

Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, stdctrls; Type tform1 = Class (tform) button1: tbutton; button2: tbutton; button3: tbutton; Procedure button1click (Sender: tobject); Procedure button2click (Sender: tobject); Procedure button3click (Sender: tobject); end; var form1: tform1; implementation {$ R *. DFM} uses superobject; // Add procedure tform1.button1click (Sender: tobject); var JO: isuperobject; I: integer; begin JO: = tsuperobject. create; for I: = 0 to 9 do Jo. I ['n' + inttostr (I)]: = I; showmessage (Jo. asjson (true); for I: = 0 to 9 do Jo. s ['n' + inttostr (I)]: = inttostr (I); showmessage (Jo. asjson (true); for I: = 0 to 9 do Jo. B ['n' + inttostr (I)]: = odd (I); showmessage (Jo. asjson (true); for I: = 0 to 9 do Jo. d ['n' + inttostr (I)]: = I/2; showmessage (Jo. asjson (true); for I: = 0 to 9 do Jo. O ['n' + inttostr (I)]: = So ('{"A": "B"}'); showmessage (Jo. asjson (true); Jo. clear; showmessage (Jo. asjson (true); end; // modify and delete procedure tform1.button2click (Sender: tobject); var JO: isuperobject; STR: string; begin Jo: = So ('{"name": "John", "Age": 88}'); showmessage (Jo. asjson (false, false); Jo. s ['name']: = 'lily'; Jo. I ['age']: = 18; showmessage (Jo. asjson (false, false); Jo. delete ('age'); showmessage (Jo. asjson (false, false); Jo. d ['sizeof]: = 1.83; showmessage (Jo. asjson (false, false); end; // add, delete, modify, and view procedure tform1.button3click (Sender: tobject); var Jo, item: isuperobject; JA: tsuperarray; i: integer; STR: string; begin JO: = So ('{"hobbies": ["programming", "playing"]}'); showmessage (Jo. asjson (false, false); Jo. A ['hobbies ']. add (SO ('Watch TV '); showmessage (Jo. asjson (false, false); JA: = Jo. A ['hobbies ']; Ja. add (SO ('swimming '); showmessage (Jo. asjson (false, false); Ja. insert (0, so ('slee'); showmessage (Jo. asjson (false, false); Ja. delete (0); showmessage (Jo. asjson (false, false); Ja. d [0]: = 3.14; showmessage (Jo. asjson (false, false); Ja. O [0]: = So ('{}'); showmessage (Jo. asjson (false, false); STR: = ''; for I: = 0 to Ja. length-1 do STR: = format ('% S % s', [STR, ja. s [I]); showmessage (TRIM (STR); STR: = ''; for item in Jo ['hobbies '] Do STR: = format ('% S % s', [STR, item. asstring]); showmessage (TRIM (STR); Ja. clear; showmessage (Jo. asjson (false, false); end.