Classic ASP

JSON: Miscellaneous Operations

Demonstrates a variety of JSON API methods. This example uses the following JSON document:

{
   "alphabet": "abcdefghijklmnopqrstuvwxyz",
   "sampleData" : {
           "pi": 3.14,
	   "apple": "juicy",
	   "hungry": true,
	   "withoutValue": null,
           "answer": 42
          
	}
}

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

set json = Server.CreateObject("Chilkat.JsonObject")
json.EmitCompact = 0

' Assume the file contains the data as shown above..
success = json.LoadFile("qa_data/json/sample2.json")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( json.LastErrorText) & "</pre>"
    Response.End
End If

' Get the "sampleData" object:
set sampleData = Server.CreateObject("Chilkat.JsonObject")
success = json.ObjectOf2("sampleData",sampleData)

' Demonstrate BoolAt and BoolOf
Response.Write "<pre>" & Server.HTMLEncode( "hungry: " & sampleData.BoolOf("hungry")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "hungry: " & sampleData.BoolAt(2)) & "</pre>"

' StringOf returns the value as a string regardless of it's actual type:
Response.Write "<pre>" & Server.HTMLEncode( "pi: " & sampleData.StringOf("pi")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "answer: " & sampleData.StringOf("answer")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "withoutValue: " & sampleData.StringOf("withoutValue")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "hungry: " & sampleData.StringOf("hungry")) & "</pre>"

' Demonstrate IsNullOf / IsNullAt
Response.Write "<pre>" & Server.HTMLEncode( "withoutValue is null? " & sampleData.IsNullOf("withoutValue")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "withoutValue is null? " & sampleData.IsNullAt(3)) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "apple is null? " & sampleData.IsNullOf("apple")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "apple is null? " & sampleData.IsNullAt(1)) & "</pre>"

' IntOf
Response.Write "<pre>" & Server.HTMLEncode( "answer: " & sampleData.IntOf("answer")) & "</pre>"

' SetNullAt, SetNullOf
' Set "pi" to null
success = sampleData.SetNullAt(0)
' Set "answer" to null
success = sampleData.SetNullOf("answer")

' Show the changes:
Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

' Restore pi and apple:
success = sampleData.SetNumberAt(0,"3.14")
success = sampleData.SetNumberOf("answer","42")

' Show the changes:
Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

' Add a null value named "afterApple" just after "apple"
success = sampleData.AddNullAt(2,"afterApple")

' Add a boolean value just after "pi"
success = sampleData.AddBoolAt(1,"afterPi",0)

' Examine the changes..
Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

%>
</body>
</html>