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Interview question: What is the use of NULL Coalescing Operator (??) in C#?

No Comments on Interview question: What is the use of NULL Coalescing Operator (??) in C#?

The Null coalescing operator is used with the nullable value types and reference types. It is a binary operator that simplifies checking for null values.

If the value of the first operand is null, then the operator returns the value of second operand, otherwise it returns the value of the first operand.

Example:  x ?? y

if x is null, it will return y else x

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