What are some examples of generics in TypeScript?

What are some examples of generics in TypeScript?

Generics in TypeScript allow you to create reusable components. For example, you can define a function that works with any data type.

Can you show me a specific example?

Sure! Here's a simple example:

function identity<T>(arg: T): T {
    return arg;
}

This function takes an argument of any type and returns it.

How do generics improve type safety?

Generics provide type safety by allowing you to specify the type of data a function or class can work with, reducing runtime errors.

Are there any built-in generic types in TypeScript?

Yes, TypeScript has built-in generic types like Array<T>, Promise<T>, and Map<K, V>, which help in creating type-safe collections.