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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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My Next.js 16 Auth Passed Every Test. Five Bugs That Only Showed Up When I Wired It Together.

Route Handler and browser cookie quirks

My Next.js 16 Auth Passed Every Test. Five Bugs That Only Showed Up When I Wired It Together.

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9 min read
The TypeScript `satisfies` Operator in 2026: Patterns You're Probably Missing

The TypeScript `satisfies` Operator in 2026: Patterns You're Probably Missing

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6 min read
Pasting a JWT Into an Online Base64 Decoder Is a Credential Leak — Here's the Browser-Only Fix

Pasting a JWT Into an Online Base64 Decoder Is a Credential Leak — Here's the Browser-Only Fix

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Comments 1
4 min read
I built a Chrome extension that lets you blow up any webpage

I built a Chrome extension that lets you blow up any webpage

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3 min read
I'm AI-First, Vanilla JS Only, and I'm Not Sorry

I'm AI-First, Vanilla JS Only, and I'm Not Sorry

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3 min read
I built a budget app that never sees your money

I built a budget app that never sees your money

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8 min read
Build a Box Plot Calculator in Pure JavaScript — No Libraries Needed

Build a Box Plot Calculator in Pure JavaScript — No Libraries Needed

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5 min read
Deploy an AI Chatbot on Your NextJS Website using FREE tools

Deploy an AI Chatbot on Your NextJS Website using FREE tools

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2 min read
Feeding the LLM the Whole Thread: Prompt Chaining for Contextual Replies

Feeding the LLM the Whole Thread: Prompt Chaining for Contextual Replies

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7 min read
I Built FinTrack - My Personal Finance App from Scratch

I Built FinTrack - My Personal Finance App from Scratch

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Comments 1
2 min read
Detecting Which AI Chat Platform You're On: URL and DOM Patterns for ChatGPT, Claude, Gemini, and Copilot

Detecting Which AI Chat Platform You're On: URL and DOM Patterns for ChatGPT, Claude, Gemini, and Copilot

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4 min read
AbortController is how fetch learned to clean up after itself

AbortController is how fetch learned to clean up after itself

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Comments 1
5 min read
React useIntersectionObserver Hook: Lazy Load & Detect Visibility (2026)

React useIntersectionObserver Hook: Lazy Load & Detect Visibility (2026)

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Comments 1
8 min read
ทำเว็บธุรกิจ Local Service ด้วย Astro ให้โหลดเร็วและ SEO ดีขึ้น

ทำเว็บธุรกิจ Local Service ด้วย Astro ให้โหลดเร็วและ SEO ดีขึ้น

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3 min read
I Built a Live Trading Dashboard With Zero Chart.js — Just CSS Custom Properties

I Built a Live Trading Dashboard With Zero Chart.js — Just CSS Custom Properties

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Comments 1
3 min read
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