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⚡ AI Lessons

Dev.to · Tim Nguyen
🔧 Backend Engineering
⚡ AI Lesson
1mo ago
Unicode, UTF-8, UTF-16, surrogate pairs, and why JavaScript `length` lies
Introduction If you've ever written this in JavaScript: console.log("🐣".length); // 2...

Dev.to · Tim Nguyen
🔧 Backend Engineering
⚡ AI Lesson
8mo ago
PostgreSQL MVCC vs MySQL Key-Next Locking: How Transaction Isolation Affects Concurrency
When developers talk about ACID databases, two giants dominate: PostgreSQL and MySQL (InnoDB). Both...
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