Null Coalescing operator: Null coalescing operator is new features of C# 6.0. It uses double question mark (??). It is shorthand of “If” condition and ternary operator. It is used for null check. There are different ways to check null in C# application. Null check using if else: This is traditional method to check null. … Read more Why you should use C# Null Coalescing and Null Conditional Operators?