Next.jsPerformanceTypeScript

Example Blog Post Title

A short 1-2 sentence description shown on the blog card. What will the reader learn?

10 June 20246 min readUpdated 12 June 2024

Opening paragraph — hook the reader. What are you going to cover and why does it matter?

Use bold to highlight key ideas and code for technical terms inline. Separate paragraphs with \n\n.

NOTE

Prerequisites: Node.js 18+, basic familiarity with React and TypeScript. Code examples use Next.js 14 App Router.

The Main Idea

Dive into the substance here. Explain the concept, technique, or insight clearly.

Use multiple paragraphs to build the argument step by step. The most important point goes here, and key APIs are called out inline.

“Make it work, make it right, make it fast — in that order.”
— Kent Beck

Step-by-step

01.

Install the dependency

npm install your-package

02.

Configure the provider

Wrap your root layout with the required context

03.

Add the first component

Drop it anywhere in your page tree

04.

Test in development

Run npm run dev and verify it renders correctly

What You Get

Zero runtime dependencies

Full TypeScript support

Works with React 18 and 19

Accessible by default (WCAG 2.1 AA)

Basic Implementation

app/page.tsx
1import { YourComponent } from 'your-package';
2
3export default function Page() {
4  return (
5    <main>
6      <YourComponent
7        prop="value"
8        onEvent={(data) => console.log(data)}
9      />
10    </main>
11  );
12}

Advanced Usage

lib/utils.ts
1import { type ClassValue, clsx } from 'clsx';
2import { twMerge } from 'tailwind-merge';
3
4/**
5 * Merge Tailwind classes safely.
6 * Resolves conflicts between utility classes.
7 */
8export function cn(...inputs: ClassValue[]) {
9  return twMerge(clsx(inputs));
10}
11
12// Example usage:
13// cn('px-4 py-2', condition && 'bg-blue-500', 'text-white')
14// → 'px-4 py-2 bg-blue-500 text-white'

TIP

Use this pattern whenever you need to conditionally apply Tailwind classes — it handles class conflicts automatically.

Performance Impact

Approach Comparison

Approach	Bundle Size	DX	Performance
This approach	`3.2kB`	Excellent	Fast
Library A	`18kB`	Good	Medium
Library B	`42kB`	OK	Slow

Install & Run

terminal
1# Install dependencies
2npm install your-package
3
4# Run development server
5npm run dev
6
7# Build for production
8npm run build && npm start

WARNING

This pattern doesn't work well with SSR if you rely on window or document — guard those calls behind useEffect or a dynamic import with ssr: false.

By The Numbers

38kB

Bundle saved

-1.2s

LCP improvement

~80

Lines of code

✓

Zero deps

Wrapping Up

Summary of what was covered and the core takeaway. What should the reader try next?

If you found this useful, the source for this site is on GitHub — feel free to poke around. And if you spot an error or have a suggestion, open an issue.

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1	import { YourComponent } from 'your-package';
2
3	export default function Page() {
4	return (
5	<main>
6	<YourComponent
7	prop="value"
8	onEvent={(data) => console.log(data)}
9	/>
10	</main>
11	);
12	}

1	import { type ClassValue, clsx } from 'clsx';
2	import { twMerge } from 'tailwind-merge';
3
4	/**
5	* Merge Tailwind classes safely.
6	* Resolves conflicts between utility classes.
7	*/
8	export function cn(...inputs: ClassValue[]) {
9	return twMerge(clsx(inputs));
10	}
11
12	// Example usage:
13	// cn('px-4 py-2', condition && 'bg-blue-500', 'text-white')
14	// → 'px-4 py-2 bg-blue-500 text-white'

1	# Install dependencies
2	npm install your-package
3
4	# Run development server
5	npm run dev
6
7	# Build for production
8	npm run build && npm start