Comment by hliyan

Typescript doesn't necessarily make your code any more stable than equivalent vanilla JavaScript that validates function arguments properly. However, it does make the code more terse and the types more apparent. It adds some build time complexity and also requires (depending on how you configure it) that you define types for every little thing (e.g. argument objects passed into functions). In IDEs, you tend to get better autocomplete on Typescript than JavaScript. That said, I still prefer JavaScript.