js/calc-controller.js
/* Bind listener and handler to '%' button */
Bind listener and handler to '%' button
Bind listener and handler to ' % ' button
function percentageController() {
    view.per.addEventListener('click', () => {
        model.percentage();
        show();
    }, false);
}
function percentageController ( ) { view . per . addEventListener ( 'click' , ( ) => { model . percentage ( ) ; show ( ) ; } , false ) ; }
Bind listener and handler to '%' button
Bind listener and handler to ' % ' button