Jan 24, 2026 · The null-coalescing operator ?? returns the value of its left-hand operand if it's not null. Otherwise, it evaluates the right-hand operand and returns its result. The ?? operator doesn't …

Aug 26, 2025 · The nullish coalescing (??) operator is a logical operator that returns its right-hand side operand when its left-hand side operand is null or undefined, and otherwise returns its left-hand side …

It is most commonly written as x ?? y, but varies across programming languages. While its behavior differs between implementations, the null coalescing operator generally returns the result of its left …

Oct 23, 2025 · The null-coalescing operator (??) in C# is used to handle null values efficiently by providing a fallback or default value. It returns the value of its left-hand operand if it is not null, …

The OR operator || uses the right value if left is falsy, while the nullish coalescing operator ?? uses the right value if left is null or undefined. These operators are often used to provide a default value if the …

The operator ?? has a very low precedence, only a bit higher than ? and =, so consider adding parentheses when using it in an expression. It’s forbidden to use it with || or && without explicit …

The null-conditional operator (?.) lets you safely access members of potentially null objects, while the null-coalescing operator (??) provides a concise way to supply default values when encountering nulls.

The ?? operator returns its right-hand side operand when its left-hand side operand is null. Similar to the safe navigation operator (?.), the null coalescing operator (??) replaces verbose and explicit checks …

Jun 17, 2021 · The null coalescing operator in C# is a really handy feature. Learn how it works in this short video from James (https://twitter.com/JamesMontemagno) and Mai...

Jul 16, 2020 · You’re about to demystify JavaScript’s double question marks (??), also known as the Nullish Coalescing Operator. It may seem odd, but it’s extremely handy when working with potential …