VietMX Staff asked 3 years ago
- Flow is a static analysis tool (static checker) which uses a superset of the language, allowing you to add type annotations to all of your code and catch an entire class of bugs at compile time.
- PropTypes is a basic type checker (runtime checker) which has been patched onto React. It can’t check anything other than the types of the props being passed to a given component. If you want more flexible typechecking for your entire project then Flow/TypeScript are appropriate choices.
