Blog

Thoughts, insights, and experiences from my journey in tech

Facebook Internal Tools

Today marked my 1-year anniversary at Facebook, this year I really learned a lot on technical side as there are tons of internal tools that I never seen them before and surprised how smart the early-stage fb engineers who built them, everyone of those are alternatives to the companies outside worth a multi-hundred millions if not a billion product/service.

FrontEnd Concepts

My progress to master FrontEnd interviews. Gonna learn and update the repo until I am good at it. Repo: https://github.com/calvinchankf/JSConcepts

Letter Combinations of a Phone Number

Two years ago, during a FAANG coding interview, I was asked to print all the possible letter combinations of a phone number. I tried very hard during the interview but I gave up eventually. Today, I go over the question again and walk through on how we could do it.