old_contents: import ENV from './environment';
  import { get, set, isArray, isObject, isBoolean, isNumber, isString, isFunction, isEmpty, typeOf, extend, parseJSON, generateRandomString } from './utils';
  import { querySelector, querySelectorAll, getAttribute, setAttribute, getDataParams, addEventListener } from './dom';
  import CoreObject from './core-object';
  import Controller from './controller';
  import { register, registerController, getControllersByParam, getControllerById, getControllerByRef, getControllersByClassName } from './core';
  import { observer, addObserver, applyObserver, getObservers, callObserver } from './observer';
  import { applyComputed, getComputedProperty, computed } from './computed';
  
  const Mojito = {
      // core
      ENV: ENV,
      register: register,
      registerController: registerController,
      Controller: Controller,
      CoreObject: CoreObject,
      getControllersByParam: getControllersByParam,
      getControllerById: getControllerById,
      getControllerByRef: getControllerByRef,
      getControllersByClassName: getControllersByClassName,
  
      // public
      get: get,
      set: set,
      isArray: isArray,
      isObject: isObject,
      isNumber: isNumber,
      isBoolean: isBoolean,
      isString: isString,
      isFunction: isFunction,
      isEmpty: isEmpty,
      typeOf: typeOf,
      extend: extend,
      querySelector: querySelector,
      querySelectorAll: querySelectorAll,
      getAttribute: getAttribute,
      setAttribute: setAttribute,
      getDataParams: getDataParams,
      parseJSON: parseJSON,
      generateRandomString: generateRandomString,
      addEventListener: addEventListener,
      addObserver: addObserver,
      getObservers: getObservers,
      applyObserver: applyObserver,
      callObserver: callObserver,
      observer: observer,
      applyComputed: applyComputed,
      getComputedProperty: getComputedProperty,
      computed: computed,
  
      // intern
      _controllerInstances: [],
      _ids: [],
      _observers: []
  };
  
  // make Mojito a global object
  if(typeof window !== 'undefined') {
      window.Mojito = Mojito;
  }
  
  export default Mojito;
  
new_contents: import ENV from './environment';
  import { get, set, isArray, isObject, isBoolean, isNumber, isString, isFunction, isEmpty, typeOf, extend, parseJSON, generateRandomString } from './utils';
  import { querySelector, querySelectorAll, getAttribute, setAttribute, getDataParams, addEventListener, hasClass, addClass, removeClass } from './dom';
  import CoreObject from './core-object';
  import Controller from './controller';
  import { register, registerController, getControllersByParam, getControllerById, getControllerByRef, getControllersByClassName } from './core';
  import { observer, addObserver, applyObserver, getObservers, callObserver } from './observer';
  import { applyComputed, getComputedProperty, computed } from './computed';
  
  const Mojito = {
      // core
      ENV: ENV,
      register: register,
      registerController: registerController,
      Controller: Controller,
      CoreObject: CoreObject,
      getControllersByParam: getControllersByParam,
      getControllerById: getControllerById,
      getControllerByRef: getControllerByRef,
      getControllersByClassName: getControllersByClassName,
  
      // public
      get: get,
      set: set,
      isArray: isArray,
      isObject: isObject,
      isNumber: isNumber,
      isBoolean: isBoolean,
      isString: isString,
      isFunction: isFunction,
      isEmpty: isEmpty,
      typeOf: typeOf,
      extend: extend,
      querySelector: querySelector,
      querySelectorAll: querySelectorAll,
      getAttribute: getAttribute,
      setAttribute: setAttribute,
      hasClass: hasClass,
      addClass: addClass,
      removeClass: removeClass,
      getDataParams: getDataParams,
      parseJSON: parseJSON,
      generateRandomString: generateRandomString,
      addEventListener: addEventListener,
      addObserver: addObserver,
      getObservers: getObservers,
      applyObserver: applyObserver,
      callObserver: callObserver,
      observer: observer,
      applyComputed: applyComputed,
      getComputedProperty: getComputedProperty,
      computed: computed,
  
      // intern
      _controllerInstances: [],
      _ids: [],
      _observers: []
  };
  
  // make Mojito a global object
  if(typeof window !== 'undefined') {
      window.Mojito = Mojito;
  }
  
  export default Mojito;
  
subject: make add/remove/hasClass public