What Is Spaghetti Code and How to Refactor It
You open a function to fix a one-line bug and forty minutes later you’re still tracing which branch sets which variable. Three unrelated jobs are welded into one block, and none of them has a name. Pull one thread and you can’t tell which others move. That is spaghetti code, and the name has nothing to do with indentation or naming style. It describes control flow: execution jumps between conditions the way one strand of pasta crosses every other strand in the bowl, and following a single path to its end means holding four levels of if in your head at once. ...