const selectAllCheckboxes = document.querySelector("#select-all"); const checkboxes = document.querySelectorAll(".checkbox"); const deleteBtn = document.querySelector("#delete"); const redriveBtn = document.querySelector("#redrive"); selectAllCheckboxes.addEventListener("click", eventCheckBox); /** * @description Event handler for select all checkbox */ function eventCheckBox() { if (selectAllCheckboxes.checked) { checkboxes.forEach((checkbox) => { checkbox.checked = true; }); } else { checkboxes.forEach((checkbox) => { checkbox.checked = false; }); } } /** * @description Event handler for checkbox to enable/disable delete button */ function handleCheckboxChange() { var atLeastOneChecked = false; checkboxes.forEach(function (checkbox) { if (checkbox.checked) { atLeastOneChecked = true; } }); deleteBtn.disabled = !atLeastOneChecked; redriveBtn.disabled = !atLeastOneChecked; } checkboxes.forEach((checkbox) => { checkbox.addEventListener("change", handleCheckboxChange); }); selectAllCheckboxes.addEventListener("click", handleCheckboxChange);