Flowtype constantly requiring null checks

Question

I\'m wondering how to avoid these numerous null checks or at least understand what the point is because it seems counter-productive.

Flowtype is giving me an error for

Answer 1

When I know for sure that my variable won't be null and Flow doesn't, I use an unwrap() function:

export default function unwrap(value: T): $NonMaybeType {
  if (value !== null && value !== undefined) return value
  throw new Error('Unwrapping not possible because the variable is null or undefined!')
}