Empty VS null array?

[Blake Anderton]

I agree a null value and empty array are separate concepts, but 
from my very anecdotal/non rigorous point of view I really 
appreciate D's ability to treat them as equivalent.

My day job mostly involves C# and array code almost always 
follows the pattern if(arr == null || arr.Length == 0) ...

In D just doing if(arr.length) feels much nicer and less error 
prone. I'm all for correctness but would hate to throw the baby 
out with the bathwater.