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(VBScript) JSON Date Parsing

Demonstrates how to parse date/time strings from JSON.

Note: This example uses the DtOf and DateOf methods introduced in Chilkat v9.5.0.73

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
Set outFile = fso.CreateTextFile("output.txt", True)



set json = CreateObject("Chilkat_9_5_0.JsonObject")
json.EmitCompact = 0

'  First, let's create JSON containing some date/time strings.
success = json.UpdateString("test.timestamp","2018-01-30T20:35:00Z")
success = json.UpdateString("test.rfc822","Tue, 24 Apr 2018 08:47:03 -0500")
success = json.UpdateString("test.dateStrings[0]","2018-01-30T20:35:00Z")
success = json.UpdateString("test.dateStrings[1]","Tue, 24 Apr 2018 08:47:03 -0500")
success = json.UpdateNumber("test.StartLoggingTime","1446834998.695")
success = json.UpdateNumber("test.Expiration","1442877512.0")
success = json.UpdateInt("test.StartTime",1518867432)

outFile.WriteLine(json.Emit())

'  We've built the following JSON:

'  {
'    "test": {
'      "timestamp": "2018-01-30T20:35:00Z",
'      "rfc822": "Tue, 24 Apr 2018 08:47:03 -0500",
'      "dateStrings": [
'        "2018-01-30T20:35:00Z",
'        "Tue, 24 Apr 2018 08:47:03 -0500"
'      ],
'      "StartLoggingTime": 1446834998.695,
'      "Expiration": 1442877512.0,
'      "StartTime": 1518867432
'    }
'  }

'  Use the DateOf and DtOf methods to load Chilkat date/time objects with the date/time values.
'  The CkDateTime object is primarily for loading a date/time from numerous formats, and then getting
'  the date/time in various formats.  Thus, it's primarly for date/time format conversion.
'  The DtObj object holds a date/time where the individual components (day, month, year, hour, minutes, etc.) are
'  immediately accessible as integers.
set dateTime = CreateObject("Chilkat_9_5_0.CkDateTime")
set dt = CreateObject("Chilkat_9_5_0.DtObj")
getAsLocal = 0

'  Load the date/time at test.timestamp into the dateTime object.
success = json.DateOf("test.timestamp",dateTime)
outFile.WriteLine(dateTime.GetAsTimestamp(getAsLocal))
outFile.WriteLine(dateTime.GetAsUnixTime(0))
outFile.WriteLine(dateTime.GetAsRfc822(getAsLocal))

success = json.DateOf("test.rfc822",dateTime)
outFile.WriteLine(dateTime.GetAsTimestamp(getAsLocal))

json.I = 0
success = json.DateOf("test.dateStrings[i]",dateTime)
outFile.WriteLine(dateTime.GetAsTimestamp(getAsLocal))

json.I = 1
success = json.DateOf("test.dateStrings[i]",dateTime)
outFile.WriteLine(dateTime.GetAsTimestamp(getAsLocal))

success = json.DateOf("test.StartLoggingTime",dateTime)
outFile.WriteLine(dateTime.GetAsTimestamp(getAsLocal))

success = json.DateOf("test.Expiration",dateTime)
outFile.WriteLine(dateTime.GetAsTimestamp(getAsLocal))

success = json.DateOf("test.StartTime",dateTime)
outFile.WriteLine(dateTime.GetAsTimestamp(getAsLocal))

'  Output so far:

'  	2018-01-30T20:35:00Z
'  	1517344500
'  	Tue, 30 Jan 2018 20:35:00 GMT
'  	2018-04-24T13:47:03Z
'  	2018-01-30T20:35:00Z
'  	2018-04-24T13:47:03Z
'  	2015-11-07T00:36:38Z
'  	2015-09-22T04:18:32Z
'  	2018-02-17T17:37:12Z

'  Now load the date/time strings into the dt object:
success = json.DtOf("test.timestamp",getAsLocal,dt)
outFile.WriteLine("month=" & dt.Month & ", day=" & dt.Day & ", year=" & dt.Year & ", hour=" & dt.Hour & ", minute=" _
     & dt.Minute)

success = json.DtOf("test.rfc822",getAsLocal,dt)
outFile.WriteLine("month=" & dt.Month & ", day=" & dt.Day & ", year=" & dt.Year & ", hour=" & dt.Hour & ", minute=" _
     & dt.Minute)

json.I = 0
success = json.DtOf("test.dateStrings[i]",getAsLocal,dt)
outFile.WriteLine("month=" & dt.Month & ", day=" & dt.Day & ", year=" & dt.Year & ", hour=" & dt.Hour & ", minute=" _
     & dt.Minute)

json.I = 1
success = json.DtOf("test.dateStrings[i]",getAsLocal,dt)
outFile.WriteLine("month=" & dt.Month & ", day=" & dt.Day & ", year=" & dt.Year & ", hour=" & dt.Hour & ", minute=" _
     & dt.Minute)

success = json.DtOf("test.StartLoggingTime",getAsLocal,dt)
outFile.WriteLine("month=" & dt.Month & ", day=" & dt.Day & ", year=" & dt.Year & ", hour=" & dt.Hour & ", minute=" _
     & dt.Minute)

success = json.DtOf("test.Expiration",getAsLocal,dt)
outFile.WriteLine("month=" & dt.Month & ", day=" & dt.Day & ", year=" & dt.Year & ", hour=" & dt.Hour & ", minute=" _
     & dt.Minute)

success = json.DtOf("test.StartTime",getAsLocal,dt)
outFile.WriteLine("month=" & dt.Month & ", day=" & dt.Day & ", year=" & dt.Year & ", hour=" & dt.Hour & ", minute=" _
     & dt.Minute)

'  Output:

'  month=1, day=30, year=2018, hour=20, minute=35
'  month=4, day=24, year=2018, hour=13, minute=47
'  month=1, day=30, year=2018, hour=20, minute=35
'  month=4, day=24, year=2018, hour=13, minute=47
'  month=11, day=6, year=2015, hour=18, minute=36
'  month=9, day=21, year=2015, hour=23, minute=18
'  month=2, day=17, year=2018, hour=11, minute=37

outFile.Close

 

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