For years, JavaScript lived inside the browser and nowhere else. You could make buttons change color, validate a form before it was submitted, maybe animate a dropdown menu. That was it. If you wanted
The first time someone told me Node.js is single-threaded, I thought they were messing with me. How does a server that runs on one thread handle thousands of people hitting it at the same time? That s
I spent an embarrassing amount of time early on not understanding why sometimes data showed up in my URL after a slash and sometimes after a question mark. I would look at URLs like /users/42 and /use
I kept hearing people say Node.js is fast. In interviews, in blog posts, in random Discord threads at 2am. But nobody explained what "fast" actually meant. Fast compared to what? Fast at what? I had t
I had a form with a file input. I had an Express server with a POST route. I hit submit, opened req.body in my route handler, and got... nothing. The text fields were there. The file was not. I spent
I built my first Express API and felt good about it. Routes worked, data came back, everything looked right. Then a friend asked "so how do you stop random people from deleting stuff?" and I realized
