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JavaScript

Once relegated to the browser as one of the 3 core technologies of the web, JavaScript can now be found almost anywhere you find code. JavaScript developers move fast and push software development forward; they can be as opinionated as the frameworks they use, so let's keep it clean here and make it a place to learn from each other!

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Building a Client-Side Text Analyzer: How I Designed ReadMetric to Solve the Readability Problem

Building a Client-Side Text Analyzer: How I Designed ReadMetric to Solve the Readability Problem

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3 min read
I built a free text case converter — camelCase, snake_case, kebab-case and 8 more

I built a free text case converter — camelCase, snake_case, kebab-case and 8 more

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1 min read
i created a language just for beginners to start making websites

i created a language just for beginners to start making websites

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2 min read
I Built "AirDrop for Text" with Node.js, Socket.IO and a QR Code — No Cloud, No Accounts

I Built "AirDrop for Text" with Node.js, Socket.IO and a QR Code — No Cloud, No Accounts

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2 min read
How a 60-Day Sliding Window Flooded Our Slack with 500 Duplicate Alerts

How a 60-Day Sliding Window Flooded Our Slack with 500 Duplicate Alerts

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5 min read
ReDoS via API Input Validation: How a Single Request Stalls the Event Loop

ReDoS via API Input Validation: How a Single Request Stalls the Event Loop

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5 min read
How to Scrape App Store & Google Play Reviews (with Sentiment Analysis) 2026

How to Scrape App Store & Google Play Reviews (with Sentiment Analysis) 2026

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7 min read
I Built a Free Browser-Only JWT Secret & Key Pair Generator (HMAC + RSA + Ed25519)

I Built a Free Browser-Only JWT Secret & Key Pair Generator (HMAC + RSA + Ed25519)

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3 min read
React Native i18n in 2026: A Practical Expo Router Playbook

React Native i18n in 2026: A Practical Expo Router Playbook

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2 min read
The JavaScript Event Loop, Visualized

The JavaScript Event Loop, Visualized

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6 min read
Your Truncated Embedding Vector Is Silently the Wrong Length — Here's the One-Line Fix

Your Truncated Embedding Vector Is Silently the Wrong Length — Here's the One-Line Fix

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2 min read
The Optimization That Was Too Good: Why Our Push Notifications Only Worked When You Weren't Looking

Summer Bug Smash: Smash Stories 🐛🛹

The Optimization That Was Too Good: Why Our Push Notifications Only Worked When You Weren't Looking

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3 min read
Working: Math.random() Is Not Your Friend: PRNG Prediction and Timing Attacks in API Tokens

Working: Math.random() Is Not Your Friend: PRNG Prediction and Timing Attacks in API Tokens

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5 min read
Working: Prototype Pollution in Node.js APIs Is a Process-Wide Trust Failure, Not a Library Bug

Working: Prototype Pollution in Node.js APIs Is a Process-Wide Trust Failure, Not a Library Bug

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5 min read
JavaScript File Recon: How Frontend Bundles Expose Endpoints, API Keys, and Business Logic

JavaScript File Recon: How Frontend Bundles Expose Endpoints, API Keys, and Business Logic

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5 min read
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