callMethod.js

var Website = {  
  updatePageView: function() {
    for(var i = 0; i < arguments.length; i++) {
      this.pageViewNumber += arguments[i];
    }
    return this.pageViewNumber;
  }
}

var profilePage = {
  name: 'My Web page',
  pageViewNumber: 0
};

Website.updatePageView.call(profilePage, 5, 6, 7, 8);

console.log(Website.updatePageView.call(profilePage));
// Output => 26