Component-driven HTML Guide with Examples

This guide shows how to build HTML with separate parts as components and how each part helps in reuse and updates across web pages.

What is Component-driven HTML?

Component-driven HTML splits a web page into many small parts. Each part holds its own code and style. Each part can repeat across the page or site without new code. This helps build pages fast and edit parts without new work.

For example:

<header>
  <nav>
    <ul>
      <li><a href="/">Home</a></li>
      <li><a href="/about">About</a></li>
    </ul>
  </nav>
</header>

This code shows a header part with a nav list. This part can repeat on each page without fresh code.

Component-based design makes each part easy to reuse across pages. Each part can update alone without harm to other parts. This saves time and cuts code size. It also helps teams build large pages without mix up between parts.

The Difference Between Component-driven HTML and Traditional HTML

This way splits a page into small parts. Each part can work alone with its own code. Each part repeats without copying and pasting the same code.

This way holds the whole page in one block. Each repeat of a part needs new code. A change in one part means edits in many pages.

Here is a table that shows you the key differences:

Use component-driven HTML for large sites with repeat parts like nav, footers, or cards. Use traditional HTML for small one page sites with no repeat parts.

Examples

Card Component:

<div class="card">
  <h2>Title</h2>
  <p>Short text about this item.</p>
  <a href="#">Read more</a>
</div>

This card part holds a title, text, and a link. You can reuse it on many pages by just changing the text and links.

Modal Component:

<div class="modal">
  <div class="modal-content">
    <span class="close">×</span>
    <p>This is a modal window part.</p>
  </div>
</div>

This modal part opens over the page. You can add it once and show it when needed without fresh code each time.

Tab Component:

<div class="tabs">
  <button class="tablink">Tab 1</button>
  <button class="tablink">Tab 2</button>
  <div class="tabcontent">Content for Tab 1</div>
  <div class="tabcontent">Content for Tab 2</div>
</div>

This tab part holds many views in one area. It loads each view without new pages and saves space on the page.

Layout Grid Component:

<div class="grid">
  <div class="grid-item">Item 1</div>
  <div class="grid-item">Item 2</div>
  <div class="grid-item">... 3</div>
</div>

This grid part holds many blocks in rows. It helps place parts of the page in order without new layout code each time.

Wrapping Up

You learned what component-driven HTML means and how it helps.

Here is a quick recap:

• Split pages into parts, reuse parts across pages, and update parts once to change all pages.

FAQs

<header> 
   <nav>Navigation</nav> 
</header> 
<footer>Footer info</footer>

<component name="card"> 
   <h2>Title</h2> 
   <p>Description</p> 
</component>

<template id="my-card"> 
   <div class="card"> 
      <h3>Card Title</h3> 
   </div> 
</template>

class MyButton extends HTMLElement {
  connectedCallback() {
    this.innerHTML = "<button>Click Me</button>";
  }
}
customElements.define('my-button', MyButton);

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