Mentoring a Junior Colleague

Welcome, Emma! No need to be nervous — everyone was new once. I am here to help you get comfortable and grow. What are you most excited about?

Honestly, I still make mistakes — we all do. The key is having good processes in place like code reviews and automated testing so that mistakes get caught early.

Let us do a weekly 30-minute check-in, and you can always message me on Slack anytime. Seriously, no question is too small. That is what I am here for.

That is totally normal, especially for your first PR. More comments usually means the reviewer is investing time in helping you grow. Let us go through them together — I bet most are minor style things.

Good question. Instead of looping through the array each time to find a match, you can build a lookup map first. It changes the time complexity from O(n squared) to O(n). Want me to show you a quick example?

That is exactly how real-world learning works. You will find that 80% of code review feedback is about patterns like this. After a few more PRs, these things will become second nature.