--description--

Now that you have obtained the values from the input fields and generated an id, you want to add them to your taskData array to keep track of each task. However, you should only do this if the task is new. If the task already exists, you will set it up for editing. This is why you have the dataArrIndex variable, which provides the index of each task.

Create an if statement with the condition dataArrIndex === -1. Within the if statement, use the unshift() method to add the taskObj object to the beginning of the taskData array.

unshift() is an array method that is used to add one or more elements to the beginning of an array.

const arr = [1, 2, 3];
arr.unshift(0);

// [0, 1, 2, 3]
console.log(arr);

--hints--

You should create an if statement with the condition dataArrIndex === -1.

assert.match(code, /if\s*\(\s*dataArrIndex\s*===\s*-1\s*\)\s*\{/)

Your if statement should have taskData.unshift(taskObj) in it's body.

assert.match(code, /if\s*\(\s*dataArrIndex\s*===\s*-1\s*\)\s*\{\s*taskData\.unshift\(\s*taskObj\s*\)\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;
  }
}

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: `${titleInput.value.toLowerCase().split(" ").join("-")}-${Date.now()}`,
    title: titleInput.value,
    date: dateInput.value,
    description: descriptionInput.value,
  };

  --fcc-editable-region--
  
  --fcc-editable-region--
});

Step 21

--description--

--hints--

--seed--

--seed-contents--