Module 4 - Forms and Validation

Explanation

You learn concepts in context, then apply them in a guided challenge.

Each lesson emphasizes clean structure, readable code, and user-focused behavior.

By the end of this module, you should be able to explain your decisions like a junior developer in a code review.

Examples

Starter example

<!-- Module 4 starter -->
<section class="card">
  <h2>Forms and Validation</h2>
  <p>Apply one best practice from this module.</p>
</section>

Enhanced example

.card {
  border: 1px solid #d0d7e2;
  border-radius: 12px;
  padding: 1rem;
}

.card h2 { color: #1f3a8a; }

Practice Task

Create a mini demo for 'Forms and Validation' with semantic markup, clear styles, and one interactive behavior. Add a visible heading and user feedback.

HTML CSS JS

Suggested Solution

<main>
  <h1>Module Demo</h1>
  <button id="actionBtn">Try Action</button>
  <p id="feedback">Ready</p>
</main>

button {
  background: #1f3a8a;
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 0.6rem 1rem;
}

const btn = document.querySelector('#actionBtn');
const feedback = document.querySelector('#feedback');
btn?.addEventListener('click', () => {
  feedback.textContent = 'Great job applying module concepts!';
});

Module Quiz

What is the best professional approach in module 4?

Module 4: Forms and Validation