Java script Code to perform insert operation

script.js

var errCallback = function (error, res) {
    console.log("**************************Database error");
    console.dir(res);
    counter = 0;
}

var db;
var counter;

var initDB = function () {
    db = openDatabase("MyTestDatabase", "1.0", "Transaction Test", 32678);

    db.transaction(function (transaction) {
        transaction.executeSql("CREATE TABLE IF NOT EXISTS TEST_TABLE (" +
            "id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT," +
            "JSONDATA TEXT NOT NULL, JSONCODE TEXT NOT NULL);");
    });

    counter = 0;
}

//SAVE function -> test transaction
var save = function (data, code, success, tx) {
    if (tx) {
        var successCallback = success.bind(this, tx);
        tx.executeSql(("INSERT INTO TEST_TABLE (JSONCODE, JSONCODE) VALUES (?, ?);"), [data, code], function (transaction, results) { successCallback(results); }, errCallback);
    } else {
        db.transaction(function (transaction) {
            var successCallback = success.bind(this, transaction);
            transaction.executeSql(("INSERT INTO TEST_TABLE (JSONCODE, JSONCODE) VALUES (?, ?);"), [data, code], function (transaction, results) { successCallback(results); }, errCallback);
        });
    }
};

var form = $("form");
function saveSuccess(tx) {
    counter++;
    console.log(counter + "'s data has been saved!");
    save($('#data').val(), $('#code').val(), saveSuccess, tx);
};

form.submit(function (event) {
    event.preventDefault();
    save($('#data').val(), $('#code').val(), saveSuccess);
});