I wrote a code, but this code is only applied to one field.
I want it to apply to all fields

const el = document.querySelectorAll("select.jet-select__control");
el.addEventListener('change', function handleChange(event) {
if (event.target.value ==='') {
location.reload();          element.classList.add("error");

         }
      });

      const el = document.querySelectorAll("select.jet-select__control");
      

      
      
      el.addEventListener('change', function handleChange(event) {
         if (event.target.value ==='') {
location.reload();          element.classList.add("error");

         }
      });

Only applies to one field!!!!!!