What are some advanced TypeScript techniques I should know?

What are some advanced TypeScript techniques I should know?

Some advanced TypeScript techniques include using generics, mapped types, conditional types, and utility types. Would you like to dive deeper into any of these?

Can you explain generics in TypeScript?

Generics allow you to create reusable components that can work with any data type. For example, you can define a function that takes a parameter of type T, which can be replaced with any type when the function is called.

What are mapped types?

Mapped types allow you to create new types by transforming properties of existing types. For instance, you can create a type that makes all properties of an existing type optional.

How do conditional types work?

Conditional types enable you to create types based on a condition. For example, you can define a type that checks if a type is a string and returns one type if true and another if false.

Can you give me an example of a utility type?

Sure! One common utility type is 'Partial<T>', which makes all properties of type T optional. This is useful when you want to update only some properties of an object.