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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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Why Your Vibe-Coded Website May Never Rank on Google (2026)

Why Your Vibe-Coded Website May Never Rank on Google (2026)

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7 min read
I Built a Unit Converter in Pure Vanilla JS — 7 Categories, 70+ Units, 165 Tests, Zero Dependencies

I Built a Unit Converter in Pure Vanilla JS — 7 Categories, 70+ Units, 165 Tests, Zero Dependencies

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3 min read
I Built a Browser-Only Timestamp Converter — Epoch ↔ Date, 30+ Timezones, DST-Aware, 124 Tests

I Built a Browser-Only Timestamp Converter — Epoch ↔ Date, 30+ Timezones, DST-Aware, 124 Tests

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3 min read
【互動藝術 DIY】用 p5.js 做一塊會呼吸的粒子背景(無程式背景可)

【互動藝術 DIY】用 p5.js 做一塊會呼吸的粒子背景(無程式背景可)

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1 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
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
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
Stop Over-Optimizing Performance: The Modern Full-Stack Toolkit in 2026

Stop Over-Optimizing Performance: The Modern Full-Stack Toolkit in 2026

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3 min read
I built a free planting calendar with 365 daily pages using AI

I built a free planting calendar with 365 daily pages using AI

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1 min read
Why every fitness app makes TDEE confusing (and my free fix)

Why every fitness app makes TDEE confusing (and my free fix)

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1 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
You Deleted It. The Crawler Still Sees It.

You Deleted It. The Crawler Still Sees It.

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5 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
How this page breaks Japanese lines

How this page breaks Japanese lines

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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
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