For me types make prototyping WAY faster, especially if "throw" or some other keyword satisfies the return type of a function. I can write out the function sign

For me types make prototyping WAY faster, especially if "throw" or some other keyword satisfies the return type of a function. I can write out the function signatures and data types I need and get things to line up with the help of a tool that tells me exactly what I need to do (the compiler). This lets me quickly find a solution without having to actually implement any of it, and then I have a skeleton ready to fill in with details.