JavaScript in Plain English

JavaScript in Plain English

Pinned

Sohom Das

Want to Be Featured on JavaScript in Plain English? Nominate Your Story!

We’re constantly inspired by the incredible stories, perspectives, and insights our writers bring to JavaScript in Plain English.

May 6

Want to Be Featured on JavaScript in Plain English? Nominate Your Story!

May 6

Pinned

Soumadri Banerjee

Subscribe to Our Free Newsletter

We keep you in the loop with exactly what is happening across the tech world.

May 5

Subscribe to Our Free Newsletter

May 5

Pinned

Soumadri Banerjee

Join Our Free Community

In light of the affection that you have shown us all at In Plain English, we want to give all our fans a direct line of communication.

May 5

Join Our Free Community

May 5

Yash Maheshwari

⚙️Stop Using index as a Key in React — Here's Why It's Breaking Your UI

Unlock smoother UI and better performance with one small fix.

20h ago

Background: A split screen or two-panel layout Left side: dull/red theme, showing a list of items (like input fields or tasks) with key={index} and bugs Right side: clean/green theme, showing same list with key={id} and a checkmark Left Panel (BAD keys): Three todo-style items with labels like: “Task A” “Task B” “Task C” Inputs appear broken (e.g. cursor lost, values flipped) Small tag: key={index} Overlay a red ⚠️ icon or a warning triangle Right Panel (GOOD keys): Same three items

20h ago

Zain Ahmad

7 JavaScript Patterns That Cut My React Bugs in Half

How I turned a brittle React codebase into a battle-tested app using these proven, scalable patterns.

20h ago

7 JavaScript Patterns That Cut My React Bugs in Half

20h ago

Aarav Joshi

Advanced Node.js Stream Backpressure: Memory Management Patterns for High-Throughput Applications

20h ago

Tech Koala Image

20h ago

Aarav Joshi

Advanced Node.js Stream Transform Patterns: 5 Powerful Techniques for Real-Time Data Processing

20h ago

Tech Koala Image

20h ago

Zain Shoaib

7 JavaScript Animations That Instantly Make Your UI Feel Premium

These smooth tricks made my frontend look like it was built by a design agency — without writing a single line of CSS animation.

20h ago

7 JavaScript Animations That Instantly Make Your UI Feel Premium

20h ago

Zain Shoaib

8 JavaScript Debugging Tricks That Made Me Feel Like a Frontend Detective

Here’s how I stopped randomly console.logging everything and actually learned to debug like a pro.

20h ago

8 JavaScript Debugging Tricks That Made Me Feel Like a Frontend Detective

20h ago

Maria Ali

My Biggest JavaScript Mistakes as a Beginner — And How I Fixed Them

The bugs, bad habits, and breakthroughs that helped me finally understand JavaScript (and stop pretending I did)

20h ago

My Biggest JavaScript Mistakes as a Beginner — And How I Fixed Them

20h ago

JavaScript in Plain English

New JavaScript and Web Development content every day. Follow to join our 3.5M+ monthly readers.

Connect with JavaScript in Plain English

Editors

Sunil Sandhu

Subscribe to my newsletter: https://newsletter.plainenglish.io

Soumadri Banerjee

Editor @ PlainEnglish.io

Sohom Das

Editor @ PlainEnglish.io

Sign up for Last Week in Plain English

By JavaScript in Plain English

Visit newsletter.plainenglish.io to sign up! Take a look.

Help

Status

About

Careers

Press

Blog

Privacy

Rules

Terms

Text to speech