I’ve been programming JavaScript for 15 years or so, and I still keep making various silly mistakes – I type things wrong, I forget to rename everything, I forget to follow the coding styles… then I waste my time clicking around in the browser and feel like slapping myself.
Thankfully tools like ESLint exist. ESLint helps by finding errors automatically, so you can spend your time doing something more interesting.
Let me show you a real-world example from a codebase I worked on of how ESLint can help.