Lianja

Loading and Parsing a JSON Array

See more JSON Examples

A JSON array is JSON that begins with "[" and ends with "]". For example, this is a JSON array that contains 3 JSON objects.

[{"name":"jack"},{"name":"john"},{"name":"joe"}]

A JSON object, however, is JSON that begins with "{" and ends with "}". For example, this JSON is an object that contains an array.

{"pets":[{"name":"jack"},{"name":"john"},{"name":"joe"}]}

This example shows how loading a JSON array is different than loading a JSON object. Lianja

lcStrJsonArray = '[{"name":"jack"},{"name":"john"},{"name":"joe"}]'

lcStrJsonObject = '{"pets":[{"name":"jack"},{"name":"john"},{"name":"joe"}]}'

// A JSON array must be loaded using JsonArray:
loJsonArray = createobject("CkJsonArray")
loJsonArray.Load(lcStrJsonArray)

// Examine the values:
i = 0
do while i < loJsonArray.Size
    loJsonObj = loJsonArray.ObjectAt(i)
    ? str(i) + ": " + loJsonObj.StringOf("name")
    release loJsonObj
    i = i + 1
enddo

// Output is:

// 	0: jack
// 	1: john
// 	2: joe

// A JSON object must be loaded using JsonObject
loJsonObject = createobject("CkJsonObject")
loJsonObject.Load(lcStrJsonObject)

// Examine the values:
i = 0
lnNumPets = loJsonObject.SizeOfArray("pets")
do while i < lnNumPets
    loJsonObject.I = i
    ? str(i) + ": " + loJsonObject.StringOf("pets[i].name")
    i = i + 1
enddo

// Output is:

// 	0: jack
// 	1: john
// 	2: joe


release loJsonArray
release loJsonObject