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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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How many tasks at once? Count the cores you are given

How many tasks at once? Count the cores you are given

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3 min read
Your Error Messages Are a Feature: What a "Random Logout" Bug Taught Me About Designing for Failure

Your Error Messages Are a Feature: What a "Random Logout" Bug Taught Me About Designing for Failure

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5 min read
Your JWT Is Not Encrypted - Here's What's Actually Inside It

Your JWT Is Not Encrypted - Here's What's Actually Inside It

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2 min read
Why the OpenTelemetry browser SDK wouldn't start on Safari 17

Why the OpenTelemetry browser SDK wouldn't start on Safari 17

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2 min read
A constitution is a behavior contract, not a description

A constitution is a behavior contract, not a description

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6 min read
I'm 16 and I built an infinite canvas that needs NO signup and shares workspaces via 5KB JSON files

I'm 16 and I built an infinite canvas that needs NO signup and shares workspaces via 5KB JSON files

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2 min read
Events in JS

Events in JS

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2 min read
Frontend machine coding rounds: the 5 patterns I would practice first (with code)

Frontend machine coding rounds: the 5 patterns I would practice first (with code)

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4 min read
Transitive dependencies explained: why a package you never installed can still break your build

Transitive dependencies explained: why a package you never installed can still break your build

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3 min read
Do not render unavailable as zero: a unit-aware JavaScript metric formatter

Do not render unavailable as zero: a unit-aware JavaScript metric formatter

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6 min read
How to Query Complex JSON and NDJSON Files with SQL (Without Writing Custom Parsers)

How to Query Complex JSON and NDJSON Files with SQL (Without Writing Custom Parsers)

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3 min read
Stop Uploading Sensitive Files: How Client-Side Web Workers Handle Local Processing

Stop Uploading Sensitive Files: How Client-Side Web Workers Handle Local Processing

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2 min read
🛠️ I Built a Hub for Everyday Web Tools (So You Don't Have To)

🛠️ I Built a Hub for Everyday Web Tools (So You Don't Have To)

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2 min read
Python vs JavaScript: Which Should a Beginner Learn First?

Python vs JavaScript: Which Should a Beginner Learn First?

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3 min read
I Built a Free Scientific Calculator With a Real Natural Math Display (No Signup)

I Built a Free Scientific Calculator With a Real Natural Math Display (No Signup)

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1 min read
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