What are advanced types in TypeScript?

What are advanced types in TypeScript?

Advanced types in TypeScript include features like intersection types, union types, mapped types, and conditional types.

Can you explain intersection types with an example?

Sure! Intersection types allow you to combine multiple types into one. For example, type A = { x: number }; type B = { y: string }; type C = A & B; means C has both properties x and `y.

What about union types? How do they work?

Union types let you define a variable that can hold multiple types. For instance, let value: string | number; means value can be either a string or a number.

Are there any practical use cases for mapped types?

Yes! Mapped types are useful for creating new types based on existing ones. For example, you can create a type that makes all properties of an existing type optional.