What are TypeScript decorator patterns?

Can you explain what TypeScript decorator patterns are?

Sure! TypeScript decorator patterns are a way to modify or enhance classes and their members using special annotations called decorators.

How do I create a simple class decorator in TypeScript?

You can create a class decorator by defining a function that takes a constructor as an argument and returns a new constructor. Here's a simple example:

function MyDecorator(constructor: Function) {
    console.log('Class decorated:', constructor);
}

@MyDecorator
class MyClass {
    constructor() {
        console.log('MyClass instance created');
    }
}

What are some common use cases for decorators?

Common use cases include logging, access control, validation, and modifying class behavior without changing the original code.

Can decorators be used with methods and properties too?

Yes, decorators can be applied to methods, properties, and even parameters, allowing for versatile enhancements across your classes.