What are nullable and non-nullable types in programming?
An example of an AI chatbot conversation about nullable vs non-nullable types in programming.
What are nullable and non-nullable types in programming?
Nullable types can hold a value or be null, while non-nullable types must always have a value.
Can you give me an example of each?
Sure! In C#, an int is non-nullable, while int? is a nullable type that can hold an integer or null.
Why would I use nullable types?
Nullable types are useful for representing optional values, like when a database field can be empty.
Are there any downsides to using nullable types?
Yes, they can introduce complexity and require additional checks to avoid null reference exceptions.
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