Node.js

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).

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var 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:
    var strJsonArray = "[ { \"name\": \"Bill\" }, { \"name\": \"Ted\" } ]";

    //  Load it into a JSON array.
    var jsonA = new chilkat.JsonArray();
    success = jsonA.Load(strJsonArray);
    console.log("number of array elements: " + jsonA.Size);

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

    //  Load it into a JSON object.
    var jsonO = new chilkat.JsonObject();
    success = jsonO.Load(strJsonObj);
    console.log("number of object members: " + jsonO.Size);

}

chilkatExample();