Advanced Types

TypeScript's advanced types allow for more precise and flexible type definitions beyond basic primitives. Intersection types combine multiple types into one, requiring a value to satisfy all combined types. Union types allow a value to be one of several specified types. Type aliases create a name for a type, making complex type definitions easier to reuse. Conditional types allow types to be determined based on a condition, often using generics. Index types enable you to extract the type of a property from another type using a key. Mapped types transform each property in a type, creating a new type based on the original. Type guards are functions that narrow down the type of a variable within a specific scope.