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In a relational database, a one-to-many relationship has one answer: a foreign key on the "many" side, and a join when you need both. You normalize f

Date bugs are some of the most frustrating bugs in software because they hide. Everything looks right in your local time zone, the tests pass on your

Look at the stylesheet of almost any site built a few years ago, and you'll find something like this: a headline at 2rem, then 2.5rem at 768 pixe

You want a button's background to fade when someone hovers over it. Do you write a transition or an animation? Most developers pick one out of ha

Mongoose is easy to start with and surprisingly deep once you're in. Defining a schema and calling Model.find() takes five minutes. Understanding w

Installing MongoDB used to be a single download that gave you the server, the shell, and a handful of command-line tools. That's no longer the case.