TypeScript Generics is a tool that provides a way of creating reusable components. It is able to create components that can work with a variety of data types rather than a single data type. Also, it provides type safety without compromising the performance, or productivity. Generics allow us to create generic classes, generic functions, generic methods, and generic interfaces.
In generics, a type parameter is written between the open (<) and close (>) brackets which makes it strongly typed collections. It uses a special kind of type variable <T> that denotes types.
Example :
function identity<T>(arg: T): T {
return arg;
}
let output1 = identity<string>("edureka");
let output2 = identity<number>( 117 );
console.log(output1);
console.log(output2);
