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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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Recovering QR-paired browser sessions after Android sleep

Recovering QR-paired browser sessions after Android sleep

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6 min read
Build Offline-First SaaS: IndexedDB in Next.js ⚡

Build Offline-First SaaS: IndexedDB in Next.js ⚡

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3 min read
Build a Simple To-Do List Using JavaScript (Step-by-Step)

Build a Simple To-Do List Using JavaScript (Step-by-Step)

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3 min read
Signed token between two PWAs: HMAC-SHA256 with no backend

Signed token between two PWAs: HMAC-SHA256 with no backend

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4 min read
8 Open Source Gems To Become The Ultimate Developer 🔥

8 Open Source Gems To Become The Ultimate Developer 🔥

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3 min read
Updates in Next.js 16.3: AI-Native Development, Better Security, and Instant Navigation

Updates in Next.js 16.3: AI-Native Development, Better Security, and Instant Navigation

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4 min read
Building a Local-Only Chrome Extension That Autofills Job Application Forms

Building a Local-Only Chrome Extension That Autofills Job Application Forms

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11 min read
I Built a Browser-Only JSON Schema Validator — Draft-07, $ref, allOf/anyOf/oneOf, if/then/else, 173 Tests

I Built a Browser-Only JSON Schema Validator — Draft-07, $ref, allOf/anyOf/oneOf, if/then/else, 173 Tests

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5 min read
React vs Next.js: Which Should You Learn?

React vs Next.js: Which Should You Learn?

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3 min read
I Built a Browser-Only HTML Entity Encoder/Decoder — Named, Decimal & Hex, 246 Tests

I Built a Browser-Only HTML Entity Encoder/Decoder — Named, Decimal & Hex, 246 Tests

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4 min read
I Thought MongoDB Atlas Was Broken. It Turned Out to Be Node.js DNS All Along.

I Thought MongoDB Atlas Was Broken. It Turned Out to Be Node.js DNS All Along.

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2 min read
How I Built a Real-Time Multiplayer Prediction Game with Next.js, Node, and BigInt Suffix Scaling

How I Built a Real-Time Multiplayer Prediction Game with Next.js, Node, and BigInt Suffix Scaling

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2 min read
How an Unindexed Column Silently Killed Our Database under Load (and the 5-Minute Fix)

How an Unindexed Column Silently Killed Our Database under Load (and the 5-Minute Fix)

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3 min read
I Built a Real-Time Regex Tester in the Browser (Capture Groups, Flags, No Libraries)

I Built a Real-Time Regex Tester in the Browser (Capture Groups, Flags, No Libraries)

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2 min read
I Built a UUID Generator Using crypto.randomUUID() (Why Math.random() Is the Wrong Choice)

I Built a UUID Generator Using crypto.randomUUID() (Why Math.random() Is the Wrong Choice)

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3 min read
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