<h1>Test</h1>

var person = mobx.observable({
  firstName: 'Matt',
  lastName: 'Ruby',
  age: 37,
  get fullName () {
    return this.firstName + ' ' + this.lastName;
  }
});
var renderCount = 0;
mobx.autorun(function() {
  renderCount++;
  $('h1').text(person.fullName + ' render count: ' + renderCount);
});

// this will trigger the render one time
_.times(10, function() {
  person.age = _.random(20);
});