Building a JavaScript Framework (and Failing Twice at Reactivity)

📰 Dev.to · Eugene Yakhnenko

Learn from the author's experience of building a JavaScript framework and failing twice at reactivity, and how to apply these lessons to your own framework development

advanced Published 23 Mar 2026
Action Steps
  1. Build a minimal viable product (MVP) of a JavaScript framework to understand the basics of framework development
  2. Implement a reactivity system in your framework and test it thoroughly to identify potential issues
  3. Refactor your framework's architecture to improve performance and scalability
  4. Use debugging tools to identify and fix errors in your framework
  5. Compare your framework's performance with other popular frameworks to identify areas for improvement
Who Needs to Know This

Software engineers and framework developers can benefit from this article by learning from the author's mistakes and understanding the challenges of building a JavaScript framework. The team can use this knowledge to improve their own framework development process and avoid similar pitfalls.

Key Insight

💡 Building a JavaScript framework is a complex task that requires careful planning, testing, and iteration. Don't be afraid to fail and learn from your mistakes.

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💡 Building a JavaScript framework? Learn from my mistakes and successes! #javascript #frameworkdevelopment

Key Takeaways

Learn from the author's experience of building a JavaScript framework and failing twice at reactivity, and how to apply these lessons to your own framework development

Full Article

About five years ago, I didn't set out to build a framework I'd use in production. I just wanted to...
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