(Swift 3,4,5...) Sort JSON Object by Member Key Name

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Demonstrates how to sort the members of a JSON object by the key name.

IMPORTANT: This example requires a pre-release for the next version of Chilkat after the current v9.5.0.99 release. Contact info@chilkatsoft.com if you wish to get a pre-release. However, pre-releases of .NET Core (hosted on NuGet) and Node.js will not be possible.

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func chilkatTest() {
    let json = CkoJsonObject()!

    json.update("xyz", value: "1234")
    json.update("abc.xyz", value: "1234")
    json.update("abc.def", value: "1234")
    json.update("abc.aaa", value: "1234")
    json.update("ghi", value: "1234")
    json.update("nmo", value: "1234")

    json.emitCompact = false
    print("\(json.emit()!)")

    // This is our initial JSON:

    // {
    //   "xyz": "1234",
    //   "abc": {
    //     "xyz": "1234",
    //     "def": "1234",
    //     "aaa": "1234"
    //   },
    //   "ghi": "1234",
    //   "nmo": "1234"
    // }

    // Sort the top-level JSON object by key.
    var ascending: Bool = true
    var caseSensitive: Bool = true
    json.sort(ascending, caseSensitive: caseSensitive)

    // Look at the sorted JSON..
    print("\(json.emit()!)")

    // {
    //   "abc": {
    //     "xyz": "1234",
    //     "def": "1234",
    //     "aaa": "1234"
    //   },
    //   "ghi": "1234",
    //   "nmo": "1234",
    //   "xyz": "1234"
    // }

    // Now sort the members of the "abc" object..
    var jsonAbc: CkoJsonObject? = json.object(of: "abc")
    jsonAbc!.sort(ascending, caseSensitive: caseSensitive)
    jsonAbc = nil

    // Now look at the JSON with the members under "abc" also sorted..
    print("\(json.emit()!)")

    // {
    //   "abc": {
    //     "aaa": "1234",
    //     "def": "1234",
    //     "xyz": "1234"
    //   },
    //   "ghi": "1234",
    //   "nmo": "1234",
    //   "xyz": "1234"
    // }

}