Thanks for correcting me, I actually wasn't aware of nil coalescing in Swift and guessed it meant the same thing as optional chaining. The nil coalescing operat

Thanks for correcting me, I actually wasn't aware of nil coalescing in Swift and guessed it meant the same thing as optional chaining. The nil coalescing operator seems to correspond to Haskell maybe function, that is, a ?? b is computed as follows: if a is nil, the result is b; otherwise a must wrap some actual value c and the result is c. Is that the one you had in mind?