What are some advanced generics examples in TypeScript?

What are some advanced generics examples in TypeScript?

Advanced generics in TypeScript allow for more flexible and reusable code. For example, you can create a generic function that works with any type.

Can you show me a specific example of a generic function?

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 about using generics with interfaces?

Absolutely! You can define a generic interface like this: interface Box<T> { contents: T; } This allows you to create boxes that can hold any type.

What about constraints in generics?

You can add constraints using the extends keyword. For example: function logLength<T extends { length: number }>(arg: T): void { console.log(arg.length); } This function only accepts types that have a length property.