controller.js

import { bindings } from '../view/bindings';

class Controller {
  constructor(userData, dateTimeManager, main, bindings){
    /**/
    this.bindings = bindings.bind(this);
  }

  addBindings(){
    window.onclick = this.bindings;
  }
}

const start = () => {
	/* lots of stuff */
	const controller = new Controller(userData, dateTimeManager, main, bindings);
	controller.addBindings();
}