The problem I have with TypeScript isn't the language itself, but the illusion of type safety that it gives you. It gives you a better developer experience at

The problem I have with TypeScript isn't the language itself, but the illusion of type safety that it gives you. It gives you a better developer experience at compile-time, there's no doubt there. My problem is once TS is transpiled, all type-related bets are off. You can easily find yourself in situations at runtime where a string is passed into to a function that's expecting a number. You may not get an actual runtime error, instead you might just see unexpected behavior. I've had to fix bugs due to this situation more times than I can count (I didn't write the original code) in our Angular app.