Swift

Append New Item to JSON Array

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Demonstrates the notations that can be used in a JSON array index to append to the end of an array. Swift

func chilkatTest() {
    // Starting in Chilkat v9.5.0.77, the following notations are possible to specify that the value
    // should be appended to the end of the array. (In other words, if the array currenty has N elements, then "-1", "", or "*" 
    // indicate an index of N+1.

    let json = CkoJsonObject()!

    json.updateInt(jsonPath: "lanes[-1]", value: 0)
    json.updateInt(jsonPath: "lanes[]", value: 1)
    json.updateInt(jsonPath: "lanes[*]", value: 2)
    json.updateInt(jsonPath: "lanes[-1]", value: 3)

    print("\(json.emit()!)")

    // Output is:  {"lanes":[0,1,2,3]}

}