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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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I Built a Puerto Rican Mountain Kitchen. The Only Image Is the Favicon.

Frontend Challenge Perfect Landing Submission đŸČđŸ„§

I Built a Puerto Rican Mountain Kitchen. The Only Image Is the Favicon.

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Comments 6
4 min read
How I built 15 PDF tools that never upload your files (100% in the browser)

How I built 15 PDF tools that never upload your files (100% in the browser)

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Comments 1
3 min read
Next.js Image Optimization in 2026: `next/image` v4, AVIF by Default, and the Config Changes Teams Miss

Next.js Image Optimization in 2026: `next/image` v4, AVIF by Default, and the Config Changes Teams Miss

Comments 1
13 min read
Building a URL-to-PDF API with Playwright: the edge cases, and how to make the PDF fillable

Building a URL-to-PDF API with Playwright: the edge cases, and how to make the PDF fillable

Comments 2
11 min read
Retry budgets by language: Python, Go, and JavaScript

Retry budgets by language: Python, Go, and JavaScript

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5 min read
How I Built a WhatsApp AI Bot That Runs for $0/Month on Windows

How I Built a WhatsApp AI Bot That Runs for $0/Month on Windows

Comments 2
4 min read
Stop using the localStorage hack to sync browser tabs. BroadcastChannel does it natively.

Avoids localStorage cleanup bugs

Stop using the localStorage hack to sync browser tabs. BroadcastChannel does it natively.

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Comments 14
4 min read
Nobody teaches you to debug

Nobody teaches you to debug

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2 min read
Playwright + Cucumber Code Review Checklist: A Senior QA Guide to Reliable CI Test Suites

Playwright + Cucumber Code Review Checklist: A Senior QA Guide to Reliable CI Test Suites

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5 min read
Your Browser Is a Supercomputer. Stop Sending Your Data to Someone Else's server.

Your Browser Is a Supercomputer. Stop Sending Your Data to Someone Else's server.

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Comments 1
6 min read
Claude Code vs Cursor vs Windsurf in 2026: Which Agentic IDE Actually Ships Production Code

Claude Code vs Cursor vs Windsurf in 2026: Which Agentic IDE Actually Ships Production Code

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Comments 2
13 min read
Dog Days Tracker đŸŸ — Track Your Pup's Happy Days!

DEV Weekend Challenge: Dog Days Edition Submission 🐕

Dog Days Tracker đŸŸ — Track Your Pup's Happy Days!

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Comments
1 min read
I Stopped Fighting AI and Started Building Better — Here's What Changed

I Stopped Fighting AI and Started Building Better — Here's What Changed

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2 min read
I rebuilt my utility site around private browser-based developer tools

I rebuilt my utility site around private browser-based developer tools

Comments 5
1 min read
Building a 3-tier on-device AI concierge: Gemini Nano -> MiniLM -> keyword, $0/query

Building a 3-tier on-device AI concierge: Gemini Nano -> MiniLM -> keyword, $0/query

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Comments
5 min read
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