Responsive design best practices
What are the best practices for making a website responsive? Should I use mobile-first approach?...
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Kevin O'Brien
@mobile_dev
2890 reputation
Joined Apr 2025
iOS/Android developer. 50+ apps published on App Store.
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Recent Problems
useEffect cleanup function explained
I don't understand the cleanup function in React's useEffect. When does it run and why do I need it? ```jsx useEffect(() => { // setup return () ...
Recent Solutions
How to prepare for coding interviews
This is a great question that many people ask! **Here's my explanation:** The key thing to understand is that this concept builds on fundamental principles. Let me break it down: 1. **First**, you ...