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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 Morse Code Translator in the Browser With Plain JavaScript

I Built a Morse Code Translator in the Browser With Plain JavaScript

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3 min read
I built 49 free online tools in 3 months — here's what I learned

I built 49 free online tools in 3 months — here's what I learned

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Comments 1
3 min read
Promise.withResolvers() Demystified: Simplify Claude Agent Loops in Node.js

Promise.withResolvers() Demystified: Simplify Claude Agent Loops in Node.js

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9 min read
Why simplified Chinese's 干 becomes three different traditional characters (and how a converter has to guess right)

Why simplified Chinese's 干 becomes three different traditional characters (and how a converter has to guess right)

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5 min read
Why Browser Agents Fail in Production Without Semantic Layers

Why Browser Agents Fail in Production Without Semantic Layers

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2 min read
Catch Zombie Fetches & Missing AbortControllers in React 19 with fetch-doctor

Catch Zombie Fetches & Missing AbortControllers in React 19 with fetch-doctor

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1 min read
How I Built a Cryptographically Secure Password Generator in Vanilla JavaScript

How I Built a Cryptographically Secure Password Generator in Vanilla JavaScript

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2 min read
Why %20 Keeps Appearing in Your URLs: A Practical Guide to URL Encoding

Why %20 Keeps Appearing in Your URLs: A Practical Guide to URL Encoding

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4 min read
Scope in JavaScript

Scope in JavaScript

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1 min read
200 OK Is Not Enough: Why Bot-Protected Sites Still Return Bad Data

200 OK Is Not Enough: Why Bot-Protected Sites Still Return Bad Data

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5 min read
Why AI Coding Agents Silently Break Full-Stack Apps (And How We Solved It in 0.75ms)

Why AI Coding Agents Silently Break Full-Stack Apps (And How We Solved It in 0.75ms)

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2 min read
Our third-party scan passed. Four upstreams were live.

Our third-party scan passed. Four upstreams were live.

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7 min read
A Paste button is a capability negotiation, not a clipboard read

A Paste button is a capability negotiation, not a clipboard read

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6 min read
Seamless by construction: chaining ten video segments into one scroll-scrubbed loop

Seamless by construction: chaining ten video segments into one scroll-scrubbed loop

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3 min read
How to calculate a no-income runway without pretending expenses are constant

How to calculate a no-income runway without pretending expenses are constant

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4 min read
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