What is nullability in programming types?

What is nullability in programming types?

Nullability refers to whether a variable can hold a null value. In programming, types can be nullable or non-nullable.

Can you give me an example of a nullable type?

Sure! In TypeScript, you can define a variable as nullable by using a union type, like this: let name: string | null;.

What are the benefits of using nullable types?

Nullable types help prevent runtime errors by making it explicit when a variable can be null, allowing for better error handling.

How do different programming languages handle nullability?

Different languages have various approaches. For example, Kotlin has built-in null safety, while Java uses annotations to indicate nullability.