//! [0]
point = new Object();
point.x = 12;
point.y = 35;
//! [0]


//! [1]
function manhattanLength(point) {  
    return point.x + point.y;
}
//! [1]


//! [2]
manhattanLength = function(point) {
   return point.x + point.y;
}
//! [2]


//! [3]
point.manhattanLength = function() {
    return this.x + this.y;
}
print(point.manhattanLength()); // prints 47
//! [3]


//! [4]
class Point() {
    var x;
    var y;
    function manhattanLength() { return x + y; }
}
//! [4]


//! [5]
point.manhattanLength = function() {
    return this.x + this.y;
}
print(point.manhattanLength()); // prints 47
//! [5]


//! [6]
class Car {
    var regNumber;
    function Car(regnr) {
        regNumber = regnr;
    }
}
var car = new Car("ABC 123");
//! [6]


//! [7]
function Car(regnr) {
    this.regNumber = regnr;
}
var car = new Car("ABC 123");
//! [7]


//! [8]
var car = new Object();
car.constructor = function(regnr) { ... }
car.constructor();
//! [8]


//! [9]
class Car {
    var regNumber;
    function Car(regnr) {
        regNumber = regnr;
    }
    function toString() {
        return regNumber;
    }
}
//! [9]


//! [10]
function Car(regnr) {
    this.regNumber = regnr;
    this.toString = function() { return this.regNumber; }
}
//! [10]


//! [11]
function Car(regnr) {
    this.regNumber = regnr;
}
Car.prototype.toString = function() { return this.regNumber; }
//! [11]


//! [12]
class GasolineCar extends Car {
    function GasolineCar(regnr) {
        Car(regnr);
    }
    function toString() {
        return "GasolineCar(" + regNumber + ")";
    }
}
//! [12]


//! [13]
function GasolineCar(regnr) {
    Car(regnr); 
}
GasolineCar.prototype = new Car();
GasolineCar.prototype.toString = function() { 
    return "GasolineCar(" + this.regNumber + ")"; 
}
//! [13]


//! [14]
class Car {
    static var globalCount = 0;
}     
print(Car.globalCount);
//! [14]


//! [15]
Car.globalCount = 0;
print(Car.globalCount);
//! [15]


//! [16]
QPushButton *button = new QPushButton();
button->setObjectName("button");
interpreter->addTransientObject(button);
//! [16]


//! [17]
QPushButton *button = new QPushButton();
QScriptValue scriptButton = engine.newQObject(button);
engine.globalObject().setProperty("button", scriptButton);
//! [17]


//! [18]
ModuleFactory::ModuleFactory()
{
    registerClass( "ImageSource", &ImgSource::staticMetaObject);
    ...
}

QObject *ModuleFactory::create( const QString &type,
        			const QVariantList &,
        			QObject * )
{
    if ( type == "ImageSource" )
        return new ImgSource();
    ...
}

...

interpreter.addObjectFactory(new ModuleFactory());
//! [18]


//! [19]
QScriptValue construct_QPushButton(QScriptContext *, QScriptEngine *engine) {
    return engine->newQObject(new QPushButton());
}

...

QScriptValue constructor = engine.newFunction(construct_QPushButton);
QScriptValue value =
    engine.newQMetaObject(&QPushButton::staticMetaObject,
                          constructor);
engine.globalObject().setProperty("QPushButton", value);
//! [19]