How the right associative of null coalescing operator behaves?

Question

null coalescing operator is right associative, which means an expression of the form

first ?? second ??third

is eva

Answer 1

Both work as expected and are effectively identical because the expressions involve simple types (thank you @Jon Skeet). It will chain to the first non-null from left to right in your examples.

The precedence (thanks @Ben Voigt) is more interesting when combining this operator with operators of different precedence:

value = A ?? B ? C : D ?? E;

Basically, associativity is expressed inherently through operator precedence or through user introduced sub-expressions (parentheses).