---
id: 64faf874364ec308f875f636
title: Step 43
challengeType: 0
dashedName: step-43
---

# --description--

You need to remove the task from the DOM using `remove()` and from the `taskData` array using `splice()`.

`splice()` is an array method that modifies arrays by removing, replacing, or adding elements at a specified index, while also returning the removed elements. It can take up to three arguments: the first one is the mandatory index at which to start, the second is the number of items to remove, and the third is an optional replacement element. Here's an example:

```js
const fruits = ["mango", "date", "cherry", "banana", "apple"];

// Remove date and cherry from the array starting at index 1
const removedFruits = fruits.splice(1, 2);

console.log(fruits); // [ 'mango', 'banana', 'apple' ]
console.log(removedFruits); // [ 'date', 'cherry' ]
```

Use the `remove()` method to remove the `parentElement` of the `buttonEl` from the DOM. Then use `splice()` to remove the task from the `taskData` array. Pass in `dataArrIndex` and `1` as the arguments of your `splice()`.

`dataArrIndex` is the index to start and `1` is the number of items to remove.

# --hints--

You should use the `remove()` method to remove the parent element of `buttonEl`.

```js
assert.match(deleteTask.toString(), /buttonEl\.parentElement\.remove\(\s*\)\s*;?/)
```

You should use `splice()` on the `taskData` array.

```js
assert.match(deleteTask.toString(), /taskData\.splice\(/)
```

The first argument of your `splice()` method should be `dataArrIndex`.

```js
assert.match(deleteTask.toString(), /taskData\.splice\(\s*dataArrIndex/)
```

The second argument of your `splice()` method should be `1`.

```js
assert.match(deleteTask.toString(), /taskData\.splice\(\s*dataArrIndex\s*,\s*1\s*\)\s*;?/)
```

# --seed--

## --seed-contents--

```html
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Learn localStorage by Building a Todo App</title>
  <link rel="stylesheet" href="styles.css" />
</head>

<body>
  <main>
    <h1>Todo App</h1>
    <div class="todo-app">
      <button id="open-task-form-btn" class="btn large-btn">
        Add New Task
      </button>
      <form class="task-form hidden" id="task-form">
        <div class="task-form-header">
          <button id="close-task-form-btn" class="close-task-form-btn" type="button" aria-label="close">
            <svg class="close-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48" width="48px" height="48px"><path fill="#F44336" d="M21.5 4.5H26.501V43.5H21.5z" transform="rotate(45.001 24 24)" /><path fill="#F44336" d="M21.5 4.5H26.5V43.501H21.5z" transform="rotate(135.008 24 24)" /></svg>
          </button>
        </div>
        <div class="task-form-body">
          <label class="task-form-label" for="title-input">Title</label>
          <input required type="text" class="form-control" id="title-input" value="" />
          <label class="task-form-label" for="date-input">Date</label>
          <input type="date" class="form-control" id="date-input" value="" />
          <label class="task-form-label" for="description-input">Description</label>
          <textarea class="form-control" id="description-input" cols="30" rows="5"></textarea>
        </div>
        <div class="task-form-footer">
          <button id="add-or-update-task-btn" class="btn large-btn" type="submit">
            Add Task
          </button>
        </div>
      </form>
      <dialog id="confirm-close-dialog">
        <form method="dialog">
          <p class="discard-message-text">Discard unsaved changes?</p>
          <div class="confirm-close-dialog-btn-container">
            <button id="cancel-btn" class="btn">
              Cancel
            </button>
            <button id="discard-btn" class="btn">
              Discard
            </button>
          </div>
        </form>
      </dialog>
      <div id="tasks-container"></div>
    </div>
  </main>
  <script src="script.js"></script>
</body>

</html>
```

```css
:root {
  --white: #fff;
  --light-grey: #f5f6f7;
  --dark-grey: #0a0a23;
  --yellow: #f1be32;
  --golden-yellow: #feac32;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--dark-grey);
}

main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

h1 {
  color: var(--light-grey);
  margin: 20px 0 40px 0;
}

.todo-app {
  background-color: var(--white);
  width: 300px;
  height: 350px;
  border: 5px solid var(--yellow);
  border-radius: 8px;
  padding: 15px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn {
  cursor: pointer;
  width: 100px;
  margin: 10px;
  color: var(--dark-grey);
  background-color: var(--golden-yellow);
  background-image: linear-gradient(#fecc4c, #ffac33);
  border-color: var(--golden-yellow);
  border-width: 3px;
}

.btn:hover {
  background-image: linear-gradient(#ffcc4c, #f89808);
}

.large-btn {
  width: 80%;
  font-size: 1.2rem;
  align-self: center;
  justify-self: center;
}

.close-task-form-btn {
  background: none;
  border: none;
  cursor: pointer;
}

.close-icon {
  width: 20px;
  height: 20px;
}

.task-form {
  display: flex;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--white);
  border-radius: 5px;
  padding: 15px;
  width: 300px;
  height: 350px;
  flex-direction: column;
  justify-content: space-between;
  overflow: auto;
}

.task-form-header {
  display: flex;
  justify-content: flex-end;
}

.task-form-body {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
}

.task-form-footer {
  display: flex;
  justify-content: center;
}

.task-form-label,
#title-input,
#date-input,
#description-input {
  display: block;
}

.task-form-label {
  margin-bottom: 5px;
  font-size: 1.3rem;
  font-weight: bold;
}

#title-input,
#date-input,
#description-input {
  width: 100%;
  margin-bottom: 10px;
  padding: 2px;
}

#confirm-close-dialog {
  padding: 10px;
  margin: 10px auto;
  border-radius: 15px;
}

.confirm-close-dialog-btn-container {
  display: flex;
  justify-content: center;
  margin-top: 10px;
}

.discard-message-text {
  font-weight: bold;
  font-size: 1.5rem;
}

#tasks-container {
  height: 100%;
  overflow-y: auto;
}

.task {
  margin: 5px 0;
}

.hidden {
  display: none;
}

@media (min-width: 576px) {
  .todo-app,
  .task-form {
    width: 400px;
    height: 450px;
  }

  .task-form-label {
    font-size: 1.5rem;
  }

  #title-input,
  #date-input {
    height: 2rem;
  }

  #title-input,
  #date-input,
  #description-input {
    padding: 5px;
    margin-bottom: 20px;
  }
}
```

```js
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 = {};

const addOrUpdateTask = () => {
  const dataArrIndex = taskData.findIndex((item) => item.id === currentTask.id);
  const taskObj = {
    id: `${titleInput.value.toLowerCase().split(" ").join("-")}-${Date.now()}`,
    title: titleInput.value,
    date: dateInput.value,
    description: descriptionInput.value,
  };

  if (dataArrIndex === -1) {
    taskData.unshift(taskObj);
  }

  updateTaskContainer()
  reset()
};

const updateTaskContainer = () => {
  tasksContainer.innerHTML = "";

  taskData.forEach(
    ({ id, title, date, description }) => {
        tasksContainer.innerHTML += `
        <div class="task" id="${id}">
          <p><strong>Title:</strong> ${title}</p>
          <p><strong>Date:</strong> ${date}</p>
          <p><strong>Description:</strong> ${description}</p>
          <button onclick="editTask(this)" type="button" class="btn">Edit</button>
          <button onclick="deleteTask(this)" type="button" class="btn">Delete</button> 
        </div>
      `
    }
  );
};

--fcc-editable-region--
const deleteTask = (buttonEl) => {
  const dataArrIndex = taskData.findIndex(
    (item) => item.id === buttonEl.parentElement.id
  );
  
}
--fcc-editable-region--

const reset = () => {
  titleInput.value = "";
  dateInput.value = "";
  descriptionInput.value = "";
  taskForm.classList.toggle("hidden");
  currentTask = {};
}

openTaskFormBtn.addEventListener("click", () =>
  taskForm.classList.toggle("hidden")
);

closeTaskFormBtn.addEventListener("click", () => {
  const formInputsContainValues = titleInput.value || dateInput.value || descriptionInput.value;
  if (formInputsContainValues) {
    confirmCloseDialog.showModal();
  } else {
    reset();
  }
});

cancelBtn.addEventListener("click", () => confirmCloseDialog.close());

discardBtn.addEventListener("click", () => {
  confirmCloseDialog.close();
  reset()
});

taskForm.addEventListener("submit", (e) => {
  e.preventDefault();

  addOrUpdateTask();
});
```
