Edit field using AJAX in Laravel

I'm trying to update field $medic->current according to my logic. I'm new to ajax and i just need to get it started.

In my code i calculate the difference between two dates { $medic->end_day , current date }. Based on their difference in dates i change the "current" field. If difference < 0 , current = 0 else current = 1 is what I'm trying to do.

So how to use AJAX to edit the "current" field of $medic. Below is the code.

<script>
          window.onload = checkcurrent;
          var today = new Date();   

          @foreach($medics as $medic)
            @if($medic->current == 1)
              function checkcurrent()
              {
                var status = ;
                var last_date= new Date('');                
                var new_last_date = new Date(last_date.getFullYear(),last_date.getMonth(),last_date.getDate());
                var diff = parseInt((new_last_date - today) / (1000 * 60 * 60 * 24));                 
                if(diff<0)
                {
                  status = 0;

                  $.ajax({ 
                    url: "", 
                    type: "POST", 
                    data: { current: 0 } , 
                    success: function (response) { 
                      console.log('success');

                    }, 
                    error: function(jqXHR, textStatus, errorThrown) { 
                    console.log(textStatus, errorThrown); 
                    }             
                  });      
                }                  
                else
                {
                  status = 1;                     
                }                           
              }
            @endif
          @endforeach



      </script>  

I just want help with the ajax code because rest is fine and working. When status is 0, I want to edit the "current" field to 0. How to do this?

via Chebli Mohamed