ionic-framework/js/controllers/viewController.js

(function(ionic) {
  ionic.ViewController = function(options) {
    this.init();
  };

  ionic.ViewController.prototype = {
    // Initialize this view controller
    init: function() {
    },
    // Destroy this view controller, including all child views
    destroy: function() {
    }
  };
})(window.ionic);