code: function (newValue) {
  		var oldValue = this._value;
  		if (oldValue !== newValue) {
  			this._value = newValue;
  			this.trigger(EVENT_CHANGE, this, newValue, oldValue);
  		}
  	}
docs: Replace the internal property with a new value and trigger a 'change'
  @param {*} newValue New property value
  @fires change