DEV Community: Derrick Richard

HTML For Beginners: The Ultimate Comprehensive Guide

Derrick Richard — Mon, 26 Jan 2026 04:01:49 +0000

HTML For Beginners: The Ultimate Comprehensive Guide

HTML, or HyperText Markup Language, is the standard markup language used to create the structure of web pages. It is not a programming language in the sense that it doesn't handle logic or calculations; instead, it provides the structure and meaning of your content. Whether you want to become a professional software engineer or just want to customize a WordPress blog, HTML is the essential first step.

1. The History and Evolution of HTML

HTML was created by Tim Berners-Lee in 1991. Since then, it has evolved through several versions (HTML 2.0, 3.2, 4.01) until reaching the current standard: HTML5.

Real-world Context: Before HTML5, web developers had to rely on third-party plugins like Adobe Flash to play videos or music. HTML5 introduced native <video> and <audio> tags, making the web faster, more secure, and mobile-friendly. Today, we follow the HTML Living Standard maintained by WHATWG, meaning the language is constantly being updated with new features.

2. Setting Up Your Development Environment

To write HTML, you don't need expensive software. You can technically use Notepad (Windows) or TextEdit (Mac), but professional developers use IDE (Integrated Development Environments).

VS Code (Visual Studio Code): The industry standard. It is free and offers "IntelliSense," which predicts what you are typing.
Extensions: Beginners should install "Live Server." This allows you to see your changes in the browser the moment you save your file, rather than manually refreshing.
Browser Tools: Every modern browser (Chrome, Firefox, Safari) has "Developer Tools." By pressing F12 or Right-Click > Inspect, you can see the HTML of any website in the world.

3. The Anatomy of an HTML Document

Let's break down the "Boilerplate" code that must exist in every single .html file.

<!DOCTYPE  html>
<html  lang="en">
<head>
    <meta  charset="UTF-8">
    <meta  name="viewport"  content="width=device-width, initial-scale=1.0">
    <meta  name="description"  content="A comprehensive guide to learning HTML for beginners.">
    <title>My First Website</title>
    <link  rel="icon"  href="favicon.ico"  type="image/x-icon">
</head>
<body>
    <!-- Visible content goes here -->
</body>
</html>
```

`
### The Breakdown:

-   `<!DOCTYPE html>`: This isn't actually an HTML tag; it's a declaration that prevents the browser from switching to "quirks mode" (an old way of rendering pages).
-   `<html lang="en">`: The root element. The `lang` attribute is vital for SEO and screen readers to know which language to use.
-   The `<head>` Section: This is the "brain" of the page. It contains information about the page that the user doesn't see directly.
    -   `<meta charset="UTF-8">`: Ensures all characters, including symbols and emojis, display correctly.
    -   `<meta name="viewport">`: This is the single most important tag for Responsive Design. It tells the browser to match the screen's width, making your site look good on mobile.
-   The `<body>` Section: This is the "body" of the page. Everything typed here (text, images, buttons) is what the user interacts with.

* * * * *

4\. Text Formatting and Hierarchy
---------------------------------

Search engines like Google use HTML tags to understand the hierarchy of your content.

### Headings (`<h1>` to `<h6>`)

There should only ever be one `<h1>` per page (usually the main title). Using headings in the correct order (`h1` then `h2`, then `h3`) is crucial for Accessibility.

`

```
<h1>Main Story Title</h1>
<h2>Sub-heading: The Beginning</h2>
<h3>Minor Detail: The Background</h3>
```

`

### Paragraphs and Text Layout

-   `<p>`: Defines a paragraph. Browsers automatically add a small margin before and after.
-   `<br>`: A line break. It moves the next piece of content to a new line without starting a new paragraph. It is a self-closing tag (no `</br>` needed).
-   `<hr>`: Horizontal Rule. Creates a thematic break (a line) between sections.

### Modern Inline Formatting (Style vs. Meaning)

-   `<strong>`: Makes text bold and tells the browser/Google this text is important.
-   `<b>`: Makes text bold but carries no extra meaning (avoid this in modern dev).
-   `<em>`: Italicizes text and emphasizes it.
-   `<i>`: Italicizes text with no extra meaning (often used for icons).
-   `<mark>`: Highlights text in yellow (useful for search results).

* * * * *

5\. Hyperlinks: Connecting the Web
----------------------------------

The `<a>` (anchor) tag is what makes the "Web" a web.

### Absolute vs. Relative Paths

This is where most beginners get stuck.

-   Absolute: A full URL (e.g., `https://google.com`). Use this for external sites.
-   Relative: A path to a file on your own computer/server (e.g., `about.html` or `images/photo.jpg`).

### Real-World Example: Navigation Menu
`

```
<nav>
    <a  href="index.html">Home</a>
    <a  href="services.html">Services</a>
    <a  href="mailto:info@example.com">Email Us</a>
    <a  href="tel:+123456789">Call Support</a>
</nav>
```

`
-   `mailto:`: Opens the user's default email app.
-   `tel:`: Prompts a phone call on mobile devices.

* * * * *

6\. Working with Lists
----------------------

Lists are used for more than just text; they are the foundation for almost every sidebar and dropdown menu you see online.

### Unordered Lists (`<ul>`)

Used for bullet points where the order doesn't matter (e.g., shopping lists).
`

```
<ul>
    <li>Milk</li>
    <li>Eggs</li>
</ul>
```

`
### Ordered Lists (`<ol>`)

Used for numbered steps (e.g., a recipe).
`

```
<ol>
    <li>Preheat oven</li>
    <li>Mix ingredients</li>
</ol>
```

`
### Description Lists (`<dl>`)

Often overlooked, these are perfect for FAQs or glossaries.
`

```
<dl>
    <dt>HTML</dt>
    <dd>A markup language for the web.</dd>
    <dt>CSS</dt>
    <dd>A styling language for the web.</dd>
</dl>
```

`

* * * * *

7\. Media Content (Images, Audio, Video)
----------------------------------------

Multimedia makes the web engaging.

### Images (`<img>`)

The `src` (source) and `alt` (alternative text) attributes are mandatory.

`<img  src="https://picsum.photos/200"  alt="A random placeholder image"  width="200"  height="200"  loading="lazy">`

-   `loading="lazy"`: A modern performance feature that tells the browser only to download the image when the user scrolls near it.

### Video and Audio
`

```
<video  width="320"  height="240"  controls  poster="thumbnail.jpg">
    <source  src="movie.mp4"  type="video/mp4">
    Your browser does not support the video tag.
</video>
```

`
-   `controls`: Adds the play/pause/volume buttons.
-   `poster`: Displays an image before the video starts playing.

* * * * *

8\. Tables: Displaying Data Structure
-------------------------------------

Tables should only be used for data, never for page layouts (that's what CSS is for).

### Complex Table Example
`

```
<table  border="1">
    <caption>Monthly Sales Comparison</caption>
    <thead>
        <tr>
            <th>Month</th>
            <th>Revenue</th>
            <th>Growth (%)</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>January</td>
            <td>$4,000</td>
            <td  rowspan="2">Stable</td> <!-- This cell spans 2 rows -->
        </tr>
        <tr>
            <td>February</td>
            <td>$4,200</td>
        </tr>
    </tbody>
    <tfoot>
        <tr>
            <td  colspan="2">Total Sum</td> <!-- Spans 2 columns -->
            <td>$8,200</td>
        </tr>
    </tfoot>
</table>
```

`

-   `rowspan` / `colspan`: Used to merge cells vertically or horizontally.
-   `<caption>`: Provides a title directly attached to the table for screen readers.

* * * * *

9\. Forms: The User Interface
-----------------------------

Forms allow you to collect information, from simple Discord messages to complex Amazon checkout pages.

### Common Input Types
`

```
<form  action="/process-data"  method="POST">
    <!-- Text Input -->
    <label  for="fname">First Name:</label>
    <input  type="text"  id="fname"  name="firstname"  required  minlength="2">

    <!-- Choice Inputs -->
    <p>Preferred Contact:</p>
    <input  type="radio"  id="email"  name="contact"  value="email">
    <label  for="email">Email</label>
    <input  type="radio"  id="phone"  name="contact"  value="phone">
    <label  for="phone">Phone</label>

    <!-- Multi-line Text -->
    <label  for="msg">Message:</label>
    <textarea  id="msg"  name="message"  rows="4"></textarea>

    <!-- The Submit Button -->
    <button  type="submit">Send Form</button>
</form>
```

`

-   `id` vs `name`: The `id` is used by CSS and JavaScript. The `name` is what the Server/Database sees when the form is sent.
-   `method="POST"`: Sends data securely in the background. `method="GET"` adds the data to the URL (used for search bars).

* * * * *

10\. Semantic HTML: The Modern Standard
---------------------------------------

"Semantic" means "relating to meaning." Modern web development relies on these tags to define different areas of a webpage.

| Tag | Purpose |
| --- | --- |
| `<header>` | Top of the page (logo, search, site title). |
| `<nav>` | The main navigation menu. |
| `<main>` | The unique, primary content of that specific page. |
| `<article>` | Independent content (blog post, news story). |
| `<section>` | A grouping of related content within a page. |
| `<aside>` | Sidebar content (ads, related links, author bio). |
| `<footer>` | Bottom of the page (copyright, social links). |

* * * * *

11\. Global Attributes
----------------------

These can be added to any HTML tag to change its behavior.

-   `class`: Used to target multiple elements with CSS. (e.g., `class="btn"`).
-   `id`: Used to target one specific element. No two elements should have the same ID.
-   `style`: Inline CSS (e.g., `style="color: red;"`). Use sparingly!
-   `title`: Shows a "tooltip" when the user hovers over the element.
-   `data-*`: Used to store custom data that JavaScript can read later.

* * * * *

12\. Best Practices for Professional Code
-----------------------------------------

1.  Always Close Your Tags: While some browsers "fix" missing tags, it causes bugs in complex layouts.
2.  Use Lowercase: `<p>` is standard; `<P>` is valid but considered unprofessional.
3.  Validate Your Code: Use the [W3C Markup Validation Service ](https://validator.w3.org/)to check for errors.
4.  Comment Your Work: Use `<!-- Comment here -->` to explain complex parts of your code to yourself or future teammates.
5.  Indentation: Always indent nested tags. It makes the code readable.

* * * * *

13\. What's Next?
-----------------

Once you understand how to structure a page with HTML, you have the "skeleton." Your next steps are:

-   CSS (Cascading Style Sheets): To add colors, fonts, and layouts.
-   JavaScript: To add interactivity (popups, form calculations, animations).
-   Frameworks: After mastering the basics, look into React, Vue, or Tailwind CSS.

HTML is the most stable technology in the world of computing. Code written in 1995 still works in browsers today. Mastering it is an investment that will never expire.

How to Write JavaScript That Stays Maintainable for Years

Derrick Richard — Wed, 14 Jan 2026 14:23:29 +0000

How to Write JavaScript That Stays Maintainable for Years

JavaScript moves quickly. New tools appear, old ones fade, and your own skills change over time. Even with all that movement, the code you write today can stay readable and dependable far into the future. Maintainability is not about trends. It is about habits that make your work easier to understand and easier to change.

This guide focuses on the practices that help JavaScript age well. The goal is to write code that future developers can pick up without confusion, including the version of you who has forgotten what you were thinking six months ago.

Why Maintainability Matters

Maintainable code saves time, reduces frustration, and keeps projects healthy. It helps you:

bring new contributors up to speed faster
avoid regressions when features evolve
keep complexity under control
refactor with confidence

If someone can open a file and understand it quickly, you are on the right track.

1. Name Things Like You Expect Someone Else To Read Them

Good naming is one of the strongest tools you have. Clear names remove guesswork and make comments less necessary.

Guidelines for naming

Use verbs for functions, such as fetchUser, calculateTotal, or renderList.
Use nouns for variables, such as cartItems, sessionToken, or retryLimit.
Avoid vague names like data, info, or temp.
Avoid abbreviations unless they are widely understood.
Choose clarity over brevity.

Example

//JavaScript
// Hard to understand
function fn(a, b) {
  return a - b;
}

// Clear and future friendly
function subtract(minuend, subtrahend) {
  return minuend - subtrahend;
}

Real world example

//JavaScript
// Vague
let x = get(u);

// Clear
let userProfile = fetchUserProfile(userId);

Good names reduce the need for explanations.

2. Keep Functions Small Enough To Understand Quickly

A function should do one thing. If it does more, break it apart.

Signs a function is too large

You have to scroll to read it
It handles unrelated responsibilities
It contains deep nesting
You hesitate to modify it

Refactoring example

//JavaScript
// Before
function processOrder(order) {
  if (!order.items.length) throw new Error("Empty order");

  let total = 0;
  for (const item of order.items) {
    total += item.price * item.quantity;
  }

  sendEmail(order.user.email, "Order received");
  return total;
}

// After
function validateOrder(order) {
  if (!order.items.length) throw new Error("Empty order");
}

function calculateTotal(order) {
  return order.items.reduce((sum, item) => sum + item.price * item.quantity, 0);
}

function notifyUser(order) {
  sendEmail(order.user.email, "Order received");
}

function processOrder(order) {
  validateOrder(order);
  const total = calculateTotal(order);
  notifyUser(order);
  return total;
}

Small functions are easier to test and easier to reuse.

3. Prefer Pure Functions and Predictable Behavior

Pure functions do not modify external state. They take input and return output. Nothing else.

Why this helps

No hidden dependencies
Fewer surprises
Easier testing
Safer refactoring

Example

//JavaScript
// Impure
let count = 0;
function increment() {
  count++;
}

// Pure
function increment(count) {
  return count + 1;
}

Predictability is a major part of maintainability.

4. Write Comments That Explain Intent

Comments should explain why something is done, not what the code already shows.

Good comments

Explain decisions
Describe edge cases
Provide context

Bad comments

Repeat the code
Explain obvious logic
Cover for unclear naming

Example

//JavaScript
// Bad
// Add 1 to i
i = i + 1;

// Good
// The API rate limit resets every minute, so we track requests here
requestCount++;

Comments should add value, not clutter.

5. Use Consistent Formatting and Linting

Consistency makes a codebase easier to read. It also reduces mental overhead.

Helpful tools

Prettier for formatting
ESLint for catching mistakes
EditorConfig for consistent editor settings

Example ESLint rule

JSON

{
  "rules": {
    "eqeqeq": "error"
  }
}

When everything looks familiar, you can focus on the logic.

6. Avoid Overengineering

Solve the problem you have today. Do not build abstractions for problems that may never appear.

Common signs of overengineering

Creating classes for simple tasks
Building complex configuration systems too early
Abstracting code before you see real duplication

Example

//JavaScript
// Overengineered
class ButtonClickHandler {
  constructor(callback) {
    this.callback = callback;
  }
  handleClick() {
    this.callback();
  }
}

const handler = new ButtonClickHandler(() => console.log("Clicked"));
button.addEventListener("click", handler.handleClick.bind(handler));

Simple version

//JavaScript
button.addEventListener("click", () => console.log("Clicked"));

Simplicity is a long term advantage.

7. Write Tests That Protect Behavior

Tests should describe what the code should do. They should not depend on internal details.

Good tests

Focus on inputs and outputs
Avoid mocking internal logic
Cover edge cases
Use clear names

Example

//JavaScript
// Bad
test("calculateTotal uses reduce", () => {
  // This breaks if you refactor
});

// Good
test("calculateTotal sums item totals", () => {
  const order = { items: [{ price: 10, quantity: 2 }] };
  expect(calculateTotal(order)).toBe(20);
});

Behavior based tests survive change.

8. Document the Public Surface Area

You do not need long documentation. You only need enough for someone to use your code without reading the source.

Document

Function signatures
Inputs and outputs
Error conditions
Side effects
Examples

Example

//JavaScript
/**
 * Calculates the total price of an order.
 * @param {Object} order The order object.
 * @returns {number} Total price.
 * @throws {Error} If order has no items.
 */
function calculateTotal(order) { ... }

A little documentation goes a long way.

9. Separate Concerns and Keep Boundaries Clear

Good architecture keeps responsibilities isolated.

Principles

Keep UI logic separate from business logic
Keep API calls in their own modules
Keep utilities independent
Avoid global state

Example

//JavaScript
// api.js
export function fetchUser(id) { ... }

// userService.js
export async function getUserProfile(id) {
  const user = await fetchUser(id);
  return transformUser(user);
}

// ui.js
button.addEventListener("click", () => {
  getUserProfile(userId).then(renderProfile);
});

Clear boundaries make systems easier to grow.

10. Refactor Regularly

Refactoring is not something you do only when things break. It is a routine part of keeping a codebase healthy.

Good habits

Clean up after adding features
Remove unused code
Simplify complex logic
Improve naming as the project evolves

Example

//JavaScript
// Before
function handle() {
  // 200 lines of mixed logic
}

// After
function handleRequest() { ... }
function validateInput() { ... }
function sendResponse() { ... }

Small improvements prevent large problems.

Final Thoughts

Maintainable JavaScript is not about perfection. It is about writing code that respects the future. Code that is clear, predictable, and easy to change will last far longer than any framework trend.

Introducing CensorCore | JavaScript Language Censoring Library

Derrick Richard — Tue, 06 Jan 2026 16:12:33 +0000

Introducing CensorCore

As a high school developer, I aim to create solutions to problems. My most recent project is called CensorCore. CensorCore is a lightweight JavaScript library designed to prevent explicit or vulgar messages to be sent in platforms that require user input, such as chatrooms, forms, etc...

CensorCore Version History

v2.0.0

CensorCore is currently in version 2.0.0. This version is a major step from version 1.1.0, as it now has a more advanced filtering method. The current version introduces phrase detection, severity levels (Low, Medium, High), and a rich analysis API. Developers can now see exactly why a message was blocked, and it adds support for custom rules via censor.extend() and async loading events.

v1.1.0

Version 1.1.0 did not have as many features, and was still somewhat basic. Some of the improvements from v1.0.0 are listed below:

Wordlist processed before detection needed
Quicker language detection
Verification if the wordlist has been loaded

This version made CensorCore more reliable, and was a small step towards perfecting CensorCore.

v1.0.0

Version 1.0.0 eas the initial release of CensorCore, and was about as basic as it could get. All this version had was very basic filtering and a small wordlist. For a word to get blocked, it had to match the spelling and case of the word in the wordist, making it unreliable. Users could just spell "A" with a "4", or an "S" with a "5", making it easy to bypass the filter.

Installation

Installing CensorCore is about as easy as counting to three.

To install CensorCore, include the script tag in the

of your HTML file to ensure it loads before your application code runs:

<script src="https://cdn.jsdelivr.net/gh/DerrickRichard/CensorCore-Library@latest/CensorCore.js"></script>

If you place the script near the closing tag, the library may load after your code runs, which can prevent the wordlist from initializing correctly.

After the script loads, a global object named censor will be available for use in your JavaScript.

Make sure your internet connection allows loading scripts from the CDN at:

https://cdn.jsdelivr.net

Basic Integration

Inside your message‑sending logic, add this check:

JavaScript

// Block explicit messages using the CensorCore library
if (censor.isBlocked(text)) {
    alert("Message blocked: Inappropriate Content");
    return;
}

A full example:

JavaScript

function sendMessage() {
    const text = input.value;

    // Block explicit messages using the CensorCore library
    if (censor.isBlocked(text)) {
        alert("Message blocked: Inappropriate Content");
        return;
    }

    addMessage(text);
    input.value = '';
    input.focus();
}

Advanced Usage (Version 2.0)

Use the new analyze() API for detailed moderation results:

JavaScript

const result = censor.analyze(text);

if (result.blocked) {
    console.log("Blocked severity:", result.severity);
    console.log("Category:", result.category);
    console.log("Matches:", result.matches);
}

Custom Rules

You can add your own rules without modifying the main wordlist:

JavaScript

censor.extend([
    { text: "my custom phrase", category: "custom", severity: "medium" }
]);

Wordlist Structure

CensorCore loads a JSON file structured by category. Your actual wordlist includes categories such as:

profanity
hate_speech
harassment
sexual_content
violence
self_harm
drugs
weapons
extremism
terrorism
disallowed_phrases
custom

Each category is automatically assigned a severity level (low, medium, or high). All categories are merged into a single internal rule engine.

The CensorCore wordlist is curated solely by Derrick Richard to ensure consistency and quality. Community members cannot directly edit the wordlist. To request a new word or phrase, please use the Word Request section in the repository's Discussions page.

API Reference

censor.isBlocked(text) - Returns true if the text contains any blocked content.

censor.analyze(text) Returns a detailed moderation result including: - whether the text is blocked - highest severity - category - all matched rules

censor.extend(rules) - Adds custom moderation rules at runtime.

censor.isReady() - Returns true when the wordlist has finished loading.

censor.isFailed() - Returns true if the wordlist failed to load.

censor.onReady(callback) - Fires when the moderation engine is ready.

censor.onError(callback) - Fires if the moderation engine fails to load.

Design Philosophy

CensorCore avoids modifying the DOM, intercepting events, or altering UI behavior. Instead, it provides a predictable, developer‑controlled moderation function. This ensures transparency, stability, and compatibility across a wide range of applications.

Disclaimer

The CensorCore wordlist is curated solely by Derrick Richard to ensure consistency and quality. Community members cannot directly edit the wordlist. To request a new word or phrase, please submit a request in the Word Request section of the repository's Discussions page.

License

CensorCore is released under the MIT License.

Official Links

Official CensorCore Site
GitHub Repository
Developer's Portfolio Website

Closure

Thank you for taking the time to read this. If you have any questions or feedback, please feel free to leave a comment on this article, or create a discussion on the CensorCore Repository Discussions Page.
I would appreciate every star and every piece of feedback I can get on this project. Thank you.

Unlocking the Web in 3D: An Introduction to Three.js

Derrick Richard — Sat, 27 Dec 2025 03:34:27 +0000

Unlocking the Web in 3D: An Introduction to Three.js

Three.js has become one of the most influential libraries in modern web development. It bridges the gap between the raw power of WebGL and the accessibility of everyday JavaScript, giving developers a way to create interactive 3D experiences that run smoothly in the browser.

This post is not a step by step tutorial. Instead, it is an overview of what Three.js is, how it works, and why it has become a foundational tool for creative web development.

What Three.js Actually Does

WebGL is the underlying technology that allows browsers to render 3D graphics. It is powerful but extremely low level. Three.js provides a structured, developer friendly layer on top of WebGL, handling:

Scene creation
Camera systems
Lighting models
Materials and shaders
Geometry generation
Model loading
Animation systems
Rendering pipelines

Without Three.js, developers would need to manually manage shaders, buffers, matrices, and GPU state. Three.js abstracts these details while still giving full access to the underlying power when needed.

The Core Building Blocks

Three.js organizes 3D graphics into a few fundamental concepts. Understanding these gives you a mental model of how the library works.

Scene

A container that holds all objects, lights, and cameras.

javascript

const scene = new THREE.Scene();

Camera

Defines the viewpoint. The most common is the perspective camera, which mimics human vision.

javascript

const camera = new THREE.PerspectiveCamera(60, aspect, 0.1, 100);

Renderer

Responsible for drawing the scene to the screen using WebGL.

javascript

const renderer = new THREE.WebGLRenderer({ antialias: true });

These three pieces form the backbone of every Three.js project, from simple demos to large scale interactive experiences.

Geometry, Materials, and Meshes

Three.js uses a modular system to define objects.

Geometry describes the shape
Material describes how it looks
Mesh combines them into a renderable object

For example:

javascript

const geometry = new THREE.SphereGeometry(1, 32, 32);
const material = new THREE.MeshStandardMaterial({ color: 0x6699ff });
const sphere = new THREE.Mesh(geometry, material);

This separation allows developers to reuse materials, swap geometries, or apply custom shaders without rewriting entire objects.

Lighting and Realism

Three.js includes a full lighting system inspired by real world physics. It supports:

Ambient light
Directional light
Point light
Spotlights
Hemisphere light
Physical materials with roughness and metalness

This makes it possible to create scenes that feel natural and dynamic.

javascript

const light = new THREE.DirectionalLight(0xffffff, 1);
light.position.set(2, 2, 2);

Animation and Motion

Three.js includes an animation system that supports:

Keyframe animations
Morph targets
Skeletal animation
Procedural motion
Custom render loops

This makes it suitable for everything from subtle UI motion to full character animation.

Model Loading

Three.js supports many 3D formats, but the recommended one is glTF, the modern standard for web friendly 3D assets.

javascript

const loader = new THREE.GLTFLoader();
loader.load("model.glb", (gltf) => {
  scene.add(gltf.scene);
});

This allows developers to import assets from Blender, Maya, Cinema4D, and other 3D tools.

Post Processing and Effects

Three.js includes an extensible post processing pipeline that supports:

Bloom
Depth of field
Motion blur
Color grading
Custom shader passes

These effects allow developers to create cinematic visuals directly in the browser.

Where Three.js Is Used

Three.js powers a wide range of real world applications:

Product configurators
Interactive museum exhibits
Data visualizations
Music visualizers
Scientific simulations
Portfolio sites
Art installations
Educational tools

Its flexibility makes it useful for both technical and creative work.

Why Three.js Matters

Three.js has become a cornerstone of modern creative web development because it:

Makes WebGL accessible
Encourages experimentation
Works across frameworks (React, Vue, Svelte, vanilla JS)
Has a massive ecosystem of examples and plugins
Scales from simple demos to complex applications

It gives developers the ability to build experiences that feel alive, interactive, and expressive in ways traditional web design cannot achieve.

Final Thoughts

Three.js is not just a library. It is a gateway into a different way of thinking about the web. It brings together art, math, physics, and design, and it gives developers the tools to create immersive experiences that run anywhere a browser exists.

If you want to explore the creative side of the web, Three.js is one of the most powerful tools you can learn.

The Most Underrated Features in Browser DevTools

Derrick Richard — Sat, 27 Dec 2025 03:33:07 +0000

The Most Underrated Features in Browser DevTools

Browser DevTools have become powerful tools, yet many developers only use a small part of what's available. While the Elements panel, Console, and Network tab are familiar, many useful features still go unnoticed. These features can greatly improve your debugging efficiency, performance checks, and overall code quality.

Below are some of the most ignored features along with practical examples of how you can apply them in real projects.

Local Overrides

Local Overrides let you change resources from any website and keep those changes even after reloading the page.

Example: You spot a layout issue on a live site. Instead of changing CSS in the Elements panel and losing your edits after a refresh, you enable Local Overrides, update the CSS file, and reload the page to make sure the fix works consistently.

CSS Overview

The CSS Overview panel provides a summary of the main aspects of your site's styles.

Example: You run CSS Overview on a large app and find out you're using twelve different shades of blue. This helps you narrow down your color choices and maintain a more consistent design.

Request Blocking

Request Blocking lets you simulate missing or failing network resources.

Example: You block a specific API call to ensure your error handling shows the correct fallback UI when the server is down.

Performance Insights

Performance Insights automatically checks for performance issues and offers suggestions on how to improve.

Example: You record a session, and the tool highlights that a large image is slowing down the Largest Contentful Paint. It identifies the file causing the delay and recommends compressing or resizing it.

Animations Panel

The Animations panel gives you precise control over CSS animations and Web Animations API effects.

Example: You slow the animation to 10 percent speed to check a small jitter that occurs during the transition. The panel indicates that a transform property is being recalculated unnecessarily.

Accessibility Tree

The Accessibility Tree shows how screen readers and other assistive tools interpret your interface.

Example: You examine a modal and see that the Accessibility Tree does not recognize it as a dialog. This prompts you to adjust the ARIA role so screen readers interact with it correctly.

Network Conditions

Network Conditions allow you to test your site under various speeds and user agents.

Example: You throttle the network to a slow 3G speed and find that your homepage takes over ten seconds to load. This encourages you to reduce image sizes and limit how much JavaScript runs at startup.

Coverage Tab

The Coverage tab identifies unused CSS and JavaScript.

Example: You run Coverage on an older codebase and discover that about 40 percent of a large CSS file is never used. This helps you remove unused selectors and reduce your bundle size.

Snippets

Snippets serve as a built-in library of reusable scripts.

Example: You create a Snippet that highlights all focusable elements on the page. Whenever you work on accessibility, you run this Snippet to quickly check how keyboard navigation flows through the interface.

Console Utility Functions

DevTools includes several built-in Console helpers that boost debugging efficiency.

Example: You select an element in the Elements panel and type $0 to reference it immediately. Then you run getComputedStyle($0) to check its final computed styles without having to query the DOM yourself.

Conclusion

Browser DevTools offer numerous helpful features that many developers overlook. Using these tools can speed up debugging, enhance performance checks, and lead to better code. If you found this useful, please like or leave a comment. I welcome feedback or suggestions for making future articles clearer or more helpful.

JSON Is More Than Data: How It Shapes Modern Software Design

Derrick Richard — Thu, 25 Dec 2025 16:54:06 +0000

JSON Is More Than Data: How It Shapes Modern Software Design

JSON has become one of the most influential technologies in modern software development. It sits at the center of APIs, configuration files, databases, frontend frameworks, and cloud systems. What began as a simple data format for JavaScript has grown into a foundational design language for the entire web ecosystem.

This post is not a step‑by‑step tutorial. Instead, it is an overview of what JSON is, how it works, and why it has become a core building block of modern software design.

What JSON Actually Does

JSON (JavaScript Object Notation) is a lightweight, text‑based format for representing structured data. It provides a simple, universal way to describe:

Objects
Arrays
Strings
Numbers
Booleans
Null

A basic example:

JSON

{
  "name": "Derrick",
  "age": 14,
  "hobbies": ["programming", "music"],
  "favoriteArtists": ["Linkin Park", "Slipknot", "Limp Bizkit"],
  "isStudent": true
}

JSON's power comes from its simplicity. It is easy for humans to read, easy for machines to parse, and easy for any programming language to generate.

Visualizing JSON Structure

Here's a simple diagram showing how JSON organizes data:

Code

{
  "name": "Derrick",
  "age": 14,
  "hobbies": ["programming", "music"],
  "favoriteArtists": ["Linkin Park", "Slipknot", "Limp Bizkit"],
  "isStudent": true
}

Conceptually, it becomes a tree:

Code

root
├── name: "Derrick"
├── age: 14
├── hobbies
│   ├── "programming"
│   └── "music"
├── favoriteArtists
│   ├── "Linkin Park"
│   ├── "Slipknot"
│   └── "Limp Bizkit"
└── isStudent: true

JSON is essentially nested boxes of information, each box containing keys and values.

The Core Building Blocks

JSON organizes data using a few fundamental concepts. Understanding these gives you a mental model of how modern systems communicate.

Objects

A collection of key‑value pairs.

Code

+---------------------------------------------+
| "name": "Derrick"                           |
| "age": 14                                   |
| "isStudent": true                           |
+---------------------------------------------+

Arrays

An ordered list of values.

Code

[ "programming", "music" ]

Values

The primitives that make up everything else.

These three pieces form the backbone of every JSON document, from simple API responses to complex configuration files.

How JSON Works

JSON works by combining objects, arrays, and primitive values into structured data. It is:

Text‑based
Language‑agnostic
Strictly formatted
Serializable (easy to send over networks)

A JSON parser reads the text, validates the structure, and converts it into native objects in your programming language.

For example:

Code

JSON text → parsed → JavaScript object

Code

"{ "name": "Derrick" }"
        ↓
{ name: "Derrick" }

This predictable structure is why JSON became the universal data language of the web.

How JSON Flows Through a System

A typical web application uses JSON like this:

Code

Frontend App
     |
     |  JSON Request
     v
Backend API
     |
     |  JSON Response
     v
Database (JSON Document)

JSON acts as the common language between layers. Each part of the system can parse it, modify it, and send it along.

Real‑World Uses of JSON

JSON quietly powers most of the software you use daily. Here are the major places where JSON shows up in real‑world systems.

1. Web APIs

Almost every modern API returns JSON.

Example:

JSON

{
  "status": "ok",
  "user": {
    "name": "Derrick",
    "age": 14,
    "hobbies": ["programming", "music"],
    "favoriteArtists": ["Linkin Park", "Slipknot", "Limp Bizkit"],
    "isStudent": true
  }
}

Used in:

Weather apps
Social media feeds
Payment systems
Authentication services
Mapping and geolocation

If your phone is talking to a server, JSON is probably the language they're speaking.

2. Configuration Files

JSON is the backbone of configuration in modern tooling.

Examples:

package.json
tsconfig.json
manifest.json
appsettings.json

These files describe how software should behave, not how it should run.

3. Databases and Storage

Many databases store data in JSON format or JSON‑like structures.

Document Databases

MongoDB
CouchDB
Firebase Firestore

Example document:

JSON

{
  "name": "Derrick",
  "age": 14,
  "hobbies": ["programming", "music"],
  "favoriteArtists": ["Linkin Park", "Slipknot", "Limp Bizkit"],
  "isStudent": true
}

SQL Databases

Even relational databases now support JSON columns:

PostgreSQL
MySQL
SQL Server

This allows developers to mix structured tables with flexible JSON fields.

4. Frontend Frameworks

React, Vue, Svelte, and Angular all rely on JSON‑shaped data structures.

Examples:

Component props
State objects
Routing tables
UI configuration

React state, for example:

JavaScript

const [user, setUser] = useState({
  name: "Derrick",
  age: 14,
  hobbies: ["programming", "music"],
  favoriteArtists: ["Linkin Park", "Slipknot", "Limp Bizkit"],
  isStudent: true
});

Frontend development is essentially transforming JSON‑like data into UI.

5. Cloud and DevOps

Cloud platforms use JSON everywhere:

AWS IAM policies
Azure ARM templates
GCP service definitions
Serverless function configs

Example AWS policy snippet:

JSON

{
  "Effect": "Allow",
  "Action": "s3:*",
  "Resource": "*"
}

JSON is the backbone of Infrastructure as Code.

6. Logging and Analytics

Logs are often stored as JSON because:

They're easy to parse
They're easy to search
They're easy to index

Example log entry:

JSON

{
  "timestamp": "2025-12-25T10:43:00Z",
  "event": "user_login",
  "user": {
    "name": "Derrick",
    "age": 14
  }
}

Tools like Elasticsearch, Datadog, and Splunk rely heavily on JSON logs.

7. Mobile Apps and IoT Devices

Mobile apps use JSON to communicate with servers. IoT devices use JSON to send sensor data.

Example IoT payload:

JSON

{
  "deviceId": "sensor-12",
  "temperature": 22.5,
  "user": "Derrick"
}

JSON is lightweight enough for tiny devices and powerful enough for large systems.

JSON vs YAML vs XML

These three formats often appear in the same conversations, but they serve different purposes.

High‑Level Comparison

Feature	JSON	YAML	XML
Human readability	Good	Excellent	Moderate
Supports comments	No	Yes	Yes
Data types	Strong	Strong	Weak (mostly text)
Verbosity	Low	Low	High
Best for	APIs, configs, storage	DevOps, configs	Documents, markup

Same data in all three formats

JSON

JSON

{
  "name": "Derrick",
  "age": 14,
  "hobbies": ["programming", "music"],
  "favoriteArtists": ["Linkin Park", "Slipknot", "Limp Bizkit"],
  "isStudent": true
}

YAML

YAML

name: Derrick
age: 14
hobbies:
  - programming
  - music
favoriteArtists:
  - Linkin Park
  - Slipknot
  - Limp Bizkit
isStudent: true

XML

XML

<user>
  <name>Derrick</name>
  <age>14</age>
  <hobbies>
    <item>programming</item>
    <item>music</item>
  </hobbies>
  <favoriteArtists>
    <artist>Linkin Park</artist>
    <artist>Slipknot</artist>
    <artist>Limp Bizkit</artist>
  </favoriteArtists>
  <isStudent>true</isStudent>
</user>

When to use which

JSON → APIs, web apps, configuration, databases
YAML → DevOps tools (Docker, Kubernetes, Ansible)
XML → Documents, RSS feeds, legacy systems

Beginner‑Friendly JSON Cheat Sheet

Valid JSON Types

Code

Object      → { "key": value }
Array       → [ value1, value2 ]
String      → "text"
Number      → 42
Boolean     → true / false
Null        → null

Rules to Remember

Keys must be in double quotes
Strings must use double quotes
No trailing commas
No comments allowed
Values must be valid JSON types

Common Patterns

Object with nested data

JSON

{
  "user": {
    "name": "Derrick",
    "age": 14
  }
}

Array of objects

JSON

[
  { "id": 1, "hobby": "programming" },
  { "id": 2, "hobby": "music" }
]

Configuration style

JSON

{
  "theme": "dark",
  "autosave": true,
  "maxFiles": 10
}

API response

JSON

{
  "success": true,
  "user": {
    "name": "Derrick",
    "age": 14
  }
}

Final Thoughts

JSON changed the way developers think about data. It made the web more connected, APIs more consistent, and software more modular. It brought simplicity to places that were once overly complex, and it continues to shape the tools and frameworks we use every day.

If you want to understand modern software design, JSON is one of the most important concepts you can learn.