Go

Understanding JSON Array vs JSON Object

See more JSON Examples

This example explains the difference between a JSON Array and a JSON Object. A JSON Array begins with "[" and ends with "]", whereas a JSON Object begins with "{" and ends with "}".

Elements contained in a JSON array are accessed by index, whereas elements in a JSON object are typically accessed by name (but can also be accessed by index).

Go

    success := false

    // A JSON array should be loaded into a Chilkat JSON array,
    // whereas a JSON object should be loaded into a Chilkat JSON object.

    // A JSON array may contain objects, and a JSON object may contains arrays, but
    // it is the top-level (outermost) element that defines whether the JSON
    // document is an array or an object.
    // An array begins and ends with "[" ... "]"
    // An object begins and ends with "{" ... "}"

    // For example, an array containing 2 objects:
    strJsonArray := "[ { \"name\": \"Bill\" }, { \"name\": \"Ted\" } ]"

    // Load it into a JSON array.
    jsonA := chilkat.NewJsonArray()
    success = jsonA.Load(strJsonArray)
    fmt.Println("number of array elements: ", jsonA.Size())

    // This is an object containing an array:
    strJsonObj := "{ \"characters\": [ \"Bill\", \"Ted\" ] }"

    // Load it into a JSON object.
    jsonO := chilkat.NewJsonObject()
    success = jsonO.Load(strJsonObj)
    fmt.Println("number of object members: ", jsonO.Size())

    jsonA.DisposeJsonArray()
    jsonO.DisposeJsonObject()