$(document).ready(function(){

    go_kwadrat();

});

​

function go_kwadrat(){

    move_me();

}

​

​

function move_me(){

    $(document).on('keydown', function(event){

​

        let klawisz = event.which;

        let kwadrat = $('#quadrat');

​

   if(klawisz === 37 && kwadrat.style.left > 0){

      console.log('lewo');

      kwadrat.style.left -= 1

   }else if(klawisz === 38 && kwadrat.style.top > 0){

      console.log('góra');

      kwadrat.style.top -= 1

   }else if(klawisz === 39 && kwadrat.style.left < 790){

      console.log('prawo');

      kwadrat.style.left += 1

   }else if(klawisz === 40 && kwadrat.style.top < 390){

      console.log('dół');

      kwadrat.style.top += 1

      }

   });

}