Go

If you have read three articles on Go concurrency and closed each one more confused than when you started, this post is for you. Most writing on the subject moves too fast — it uses the word “channel” as if you already know what one is, drops phrases like “fan-out fan-in” as if they refer to well-known landmarks, and expects you to bring your own mental model of how goroutines relate to threads. This post makes the opposite bet. It starts from zero, defines each term the moment it appears, keeps the code samples small enough to hold in your head, and — this part matters — puts the primitives (the building blocks) and the best practices (the rules of thumb) in separate sections so you never have to guess which one you are looking at. ...