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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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Entendo Fetch de uma vez por todas.

Entendo Fetch de uma vez por todas.

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2 min read
How I fixed Googlebot indexing for a React + Leaflet SPA (without Next.js or Puppeteer)

How I fixed Googlebot indexing for a React + Leaflet SPA (without Next.js or Puppeteer)

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3 min read
Mastering Destructuring in JavaScript: Extract Smarter, Code Cleaner

Mastering Destructuring in JavaScript: Extract Smarter, Code Cleaner

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3 min read
The Queue Whisperer: Taming Bull Jobs in NestJS Like a Pro

The Queue Whisperer: Taming Bull Jobs in NestJS Like a Pro

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4 min read
The Day "this" Betrayed Me in JavaScript

The Day "this" Betrayed Me in JavaScript

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4 min read
The Weird Beauty of JavaScript: One Language, Infinite Personalities

The Weird Beauty of JavaScript: One Language, Infinite Personalities

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3 min read
Building a Micro SaaS for Email Follow-Ups: My Journey from Idea to Launch

Building a Micro SaaS for Email Follow-Ups: My Journey from Idea to Launch

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2 min read
[x509Lab]Generating Ed25519 Certificate Chains in the Browser (No Server Required)

[x509Lab]Generating Ed25519 Certificate Chains in the Browser (No Server Required)

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2 min read
Ilha for Svelte Developers

Ilha for Svelte Developers

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9 min read
How I turned a single Supabase query into 19GB of egress

How I turned a single Supabase query into 19GB of egress

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3 min read
A LinkedIn Recruiter Sent Me Malware Disguised as a "Pre-Interview Code Review"

Malicious npm scripts mimicking build tools

A LinkedIn Recruiter Sent Me Malware Disguised as a "Pre-Interview Code Review"

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6 min read
I Tried to Auto-Launch My MCP Server Using My MCP Server. It Found Its Own Bug.

I Tried to Auto-Launch My MCP Server Using My MCP Server. It Found Its Own Bug.

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11 min read
The Silent Billing Bug Every AI-Generated SaaS Has (And How Weekly Stripe Visibility Helps Catch It)

The Silent Billing Bug Every AI-Generated SaaS Has (And How Weekly Stripe Visibility Helps Catch It)

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2 min read
Things Nobody Tells You About Building Chrome Extensions

Things Nobody Tells You About Building Chrome Extensions

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3 min read
JSON.strigify() vs JSON.parse()

JSON.strigify() vs JSON.parse()

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2 min read
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