Alan2
Reputation: 24592
Short cut for a check for null and assigning a value to it if it is?
With the new C# 8 capabilities is there a short cut now for this null-check code structure?
if (App.selectedPhrases == null)
App.selectedPhrases = App.DB.GetSelectedPhrases();
Upvotes: 2
Views: 768
Answers (2)
Salah Akbari
Reputation: 39966
Yes, it is called Null-coalescing assignment:
App.selectedPhrases ??= App.DB.GetSelectedPhrases();
C# 8.0 introduces the null-coalescing assignment operator ??=. You can use the ??= operator to assign the value of its right-hand operand to its left-hand operand only if the left-hand operand evaluates to null.
Upvotes: 9
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