The Pragmatic Developer

The Pragmatic Developer

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Some Thoughts on Coding, AI, and Staying Relevant
You can write code while AI quietly reviews. You can write a test and let AI attempt the first implementation. You can explore rabbit holes without the…
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Juntao Qiu
Frontend System Design in Action: Implementing A Scalable Feed List
In the last issue, I walked through how I apply the CCDAO framework to implement a Typeahead Search Box, which is often found in many frontend system…
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Juntao Qiu
Frontend System Design in Action: Implementing Typeahead
In this issue, I want to show how I would apply the CCDAO framework in a frontend system design interview.
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Juntao Qiu

June 2025

Solution to Design Challenge 009: Two Ways to Refactor a Status-Driven UI in React
Component extraction vs. helper refactor — which scales better?
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Juntao Qiu
Design Challenge 009: Refactoring a Status-Driven UI in React
Untangling status-based rendering logic in a real-world React component
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Juntao Qiu
The Fastest Way to Become a Better Developer (That Isn’t More Coding)
Five powerful non-coding habits that can dramatically accelerate your growth as a developer — from workflow mastery to writing and communication.
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Juntao Qiu

May 2025

The Joy of Building Something That Doesn’t Matter
A personal story about reviving a 15-year-old Java desktop app, debugging late into the night, and rediscovering the quiet joy of building something…
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Juntao Qiu
Hitting the Plateau: Why You Feel Stuck in React (And How to Break Through)
The truth is: it’s a long game. You don’t master anything overnight.
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Juntao Qiu
Build Something “Useless” — and Learn More Than You Expect
How building a “useless” side project can lead to deeper learning, lasting confidence, and real growth as a developer.
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Juntao Qiu

April 2025

Design Principles Scale: From Refactoring Code to Migrating Systems
What if the same principles you use to refactor code could guide you through large-scale system migrations?
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Juntao Qiu
React Code Interview 005: Throttle, Debounce, and a Better Search Experience in React
Debounce and throttle often show up in frontend interviews — but they become truly valuable when you’re building responsive, data-driven UIs in the real…
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Juntao Qiu
Every Programming Problem is a Domain Problem
Why Understanding the Business Domain Matters More Than Writing Code
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Juntao Qiu
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