const form = document.getElementById("modifierCatgorie"); const nameField = document.getElementById("nomCategorie"); const descField = document.getElementById("categorieDescription"); const errorMsg = document.getElementById("errorMsg"); const successMsg = document.getElementById("successMsg"); form.addEventListener("submit", function (e) { e.preventDefault(); //vérification des champs obligatoires if (nameField.value.trim() === "" || descField.value.trim() === "") { errorMsg.classList.remove("d-none"); successMsg.classList.add("d-none"); return; } //Succès errorMsg.classList.add("d-none"); successMsg.classList.remove("d-none"); });