When I use a feature a lot in projects, I usually get curious about how it works under the hood. I’ve found that if you don’t really understand how something works, you’re mostly just hoping it behaves the way you expect. So I like to look at the structure first. I try to understand how the code flows, then I build my own version of it so I can see what is actually happening step by step. This time, I decided to look into Node.js event emitters. They are similar to browser events like m...