Why Generics Matter#
Generics allow us to create components that work over a variety of types rather than a single one. This provides type safety without sacrificing flexibility.
Key Concepts#
- Type Variables: Using
<T>to capture types. - Constraints: Restricting types using the
extendskeyword.
“Generics are to types what variables are to values.”
Example Code#
Here is how you might define a simple identity function:
function identity<T>(arg: T): T { return arg;}