Alex Rivera (@alexcodes)

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Alex Rivera

@alexcodes

Full-stack developer | Open source enthusiast | Building cool stuff with React & Node.js | Sharing dev tips and tricks | Coffee addict ☕

San Francisco, CA

Joined March 2019

847 Following

12.3K Followers

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Alex Rivera @alexcodes · 2h

Just deployed a new feature that reduces API response time by 40%! Sometimes the best optimizations come from questioning assumptions. Here's what I learned 🧵

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Alex Rivera @alexcodes · 5h

Hot take: Writing tests isn't about catching bugs. It's about understanding your code well enough to predict how it should behave. The bugs you catch are just a nice side effect.

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Alex Rivera @alexcodes · 1d

Debugging tip: Before diving into code, grab a coffee and explain the bug out loud to yourself (or a rubber duck 🦆). You'll be surprised how often the solution appears before you touch the keyboard.

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Alex Rivera @alexcodes · 2d

Finally migrated our legacy codebase to TypeScript. It was painful, but now our IDE actually helps us instead of lying about what exists. Type safety is a superpower.

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