Stop Misusing useEffect! | React Native Interview Questions
🚀 Most developers use useEffect every day—but many still misunderstand how it actually works.
If you've ever wondered why your API request runs multiple times, why dependency arrays matter, or why cleanup functions are so important, this episode is for you.
In this React Native Interview Questions series, we go beyond memorizing Hooks and build a deep understanding of React's rendering model, side effects, dependency arrays, and production best practices.
Whether you're preparing for a junior, mid-level, or senior React Native interview, mastering useEffect is one of the most valuable skills you can develop.
📚 What You'll Learn
What useEffect really is
Why React introduced it
Rendering vs Side Effects
How dependency arrays work
Cleanup functions explained
Real React Native example
Common interview questions
Senior developer best practices
⏱️ Timestamps
00:00 Introduction
01:03 Understanding useEffect
03:14 What Really Happens After Rendering?
05:10 Visualizing the Effect Lifecycle
06:41 A Simple React Native Example
07:48 Common React Native Interview Questions
09:32 A Senior Developer Perspective
10:34 Recap
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#reactnative #javascript #typescript #mobiledevelopment #softwareengineering
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