i cannot work through this plz help me
const taskForm = document.getElementById("task-form");
const confirmCloseDialog = document.getElementById("confirm-close-dialog");
const openTaskFormBtn = document.getElementById("open-task-form-btn");
const closeTaskFormBtn = document.getElementById("close-task-form-btn");
const addOrUpdateTaskBtn = document.getElementById("add-or-update-task-btn");
const cancelBtn = document.getElementById("cancel-btn");
const discardBtn = document.getElementById("discard-btn");
const tasksContainer = document.getElementById("tasks-container");
const titleInput = document.getElementById("title-input");
const dateInput = document.getElementById("date-input");
const descriptionInput = document.getElementById("description-input");
const taskData = [];
let currentTask = {};
openTaskFormBtn.addEventListener("click", () =>
taskForm.classList.toggle("hidden")
);
closeTaskFormBtn.addEventListener("click", () => {
confirmCloseDialog.showModal();
});
cancelBtn.addEventListener("click", () => confirmCloseDialog.close());
discardBtn.addEventListener("click", () => {
confirmCloseDialog.close();
taskForm.classList.toggle("hidden");
});
taskForm.addEventListener("submit", (e) => {
e.preventDefault();
const dataArrIndex = taskData.findIndex((item) => item.id === currentTask.id);
const taskObj = {
id : `${titleInput.value.toLowerCase().split(' ').join('-')}`,
}
}); ```