scriptJsCreateCompetition.html

    <script>
      function validateFields(input){
        if (input.name.value.length === 0){
          const divName = document.getElementById('div-name');
          const div = document.createElement('div');
          div.className = "warning";
          div.innerHTML = "Veuillez entrer le nom de la compétition.";
          divName.appendChild(div);
          setTimeout(()=>{
            div.parentNode.removeChild(div);
          }, 2000);
        }else if (input.town.value.length === 0){
          const divTown = document.getElementById('div-town');
          const div = document.createElement('div');
          div.className = "warning";
          div.innerHTML = "Veuillez entrer la ville qui accueille la compétition.";
          divTown.appendChild(div);
          setTimeout(()=>{
            div.parentNode.removeChild(div);
          }, 2000);
        }else if (input.year.value.length === 0 || isNaN(parseInt(input.year.value))){
          const divYear = document.getElementById('div-year');
          const div = document.createElement('div');
          div.className = "warning";
          div.innerHTML = "Veuillez un nombre correcte.";
          divYear.appendChild(div);
          setTimeout(()=>{
            div.parentNode.removeChild(div);
          }, 2000);
        }else
          google.script.run.addCompet(input);
      }
    </script>