Colocation is king
Alex Moldovan
@alexmoldovan.dev
Founder @ JSHeroes
Product Engineer @ together.ai
🙋
Disclaimer
<CODE>
Product Roadmap
Business Priorities
Company Pivots
Staff Change
Architecture Change
Tech Stack Change
<CODE>
Product Roadmap
Business Priorities
Company Pivots
Staff Change
Architecture Change
Tech Stack Change
Resilience
Colocation = proximity principle
https://alexmoldovan.dev/code-bites/colocation-is-king
https://speakerdeck.com/didoo/let-there-be-peace-on-css?slide=62
A few examples with two levels: folder and file
Remember our initial goal?
Write
Read
👩💻
function whoYouGonnaCall() {
return "GHOSTBUSTERS!";
}👨🏽💻
👩🏿💻
👩💻
1
3
1
10
Write phase
Technology adoption
JSX
CSSinJS
Tailwind
tanstack/query
Bonus: AI
Read phase
Mental load
Maintenance - unused utility/component - gone
Challenge conventional wisdom
1 component = 1 exported component
index files
unit tests = integration tests
Change the priority
When should you colocate?
When should you extract?
When should you extract?
1. Complexity
2. Different domain
3. Certain reusability
Thank you! Q&A?
Alex Moldovan
@alexmoldovan.dev
Founder @ JSHeroes
Product Engineer @ together.ai
Colocation is king
By Alex Moldovan
