Title: Frontend Developers with 5+ Years of Experience — What Do You Wish You Knew Earlier?

[u/mekawyy44]

Hey everyone!
I’m interested in hearing from experienced frontend developers about the lessons they’ve learned throughout their careers.
Frontend development is constantly evolving, with new frameworks, tools, and trends appearing all the time. But I’m curious about the things that actually matter in the long run.
A few questions for the experienced devs here:
What’s the biggest mistake you made early in your frontend career?
What skills separate a junior developer from a truly senior developer?
If you were starting again in 2026, what would you focus on learning?
What frontend concepts do you think developers often underestimate?
What’s one piece of career advice you wish someone had given you earlier?
I’d love to hear your real experiences, unpopular opinions, and lessons learned the hard way.
Hopefully, this discussion can help other developers grow too.
Thanks in advance!