Backbone Basic

var Appointment = Backbone.Model.extend({});
var appointment = new Appointment();
appointment.set('title', 'My knee hurts');
var AppointmentView = Backbone.View.extend({
  render: function(){
    $(this.el).html('
' + this.model.get('title') + '
');
  }
});
var appointmentView = new AppointmentView({model: appointment});

appointmentView; 
appointmentView.render()
$('#app').html(appointmentView.el);