objeto.html

<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>Objetos</title>
  </head>
  <body>
    <script type="text/javascript">
    var myFilm = new Object();
      myFilm.director = "Benito Camela";
      myFilm.year  ="2561";
      myFilm.country = "Croatia";
      myFilm["locura"] = "mucha";

      function showProps (obj, objName){
          var result = '';
          for(var i in obj){
            if(obj.hasOwnProperty(i)){
              //esta propiedad pregunta si el objeto tiene esa propiedad
              result+= objName + "." + i + "=" + obj[i] + "\n";
            }
          }
          return result;
        }
      console.log(showProps(myFilm,"myFilm"));
      document.write(showProps(myFilm,"myFilm"));

      //otra forma loca de crear objetos

      let altaPeli = {
          año: "215",
          director: "to3",
      }

      //una forma aun mas loca que implica una funcion

      function peli(director,genero,estrella){
          this.director = director;
          this.genero  = genero;
          this.estrella = estrella;
      }

      var laMomia =  new peli("Jonathan Rodriguez", "Terror Marxista", "tita");
      var barcoDeAmor  = new peli("Norberto","Aventura acuatica","loco");

      document.write(showProps(laMomia,"laMomia"));

    </script>
  </body>
</html>