When should I use optional types in programming?

When should I use optional types in programming?

Optional types are useful when a value may or may not be present, helping to avoid null reference errors.

Can you give me an example of optional types in a programming language?

Sure! In TypeScript, you can define a function parameter as optional by using a question mark, like this: function greet(name?: string) { ... }.

What are the benefits of using optional types?

They improve code safety by making it clear which values can be absent, and they help with better type checking.

Are there any downsides to using optional types?

Yes, overusing optional types can lead to complex code and make it harder to understand the flow of data.