What are TypeScript decorator factories?

Can you explain what TypeScript decorator factories are?

Sure! TypeScript decorator factories are functions that return decorators. They allow you to create reusable decorators with parameters.

How do I create a simple decorator factory?

To create a simple decorator factory, define a function that takes parameters and returns a decorator function. For example:

function Log(message: string) {
    return function(target: any, propertyKey: string, descriptor: PropertyDescriptor) {
        console.log(`${message}: ${propertyKey}`);
    };
}

Can you give me an example of using a decorator factory?

Absolutely! Here's how you can use the Log decorator factory:

class Example {
    @Log('Method called')
    myMethod() {
        console.log('Executing myMethod');
    }
}

What are some common use cases for decorator factories?

Common use cases include logging, access control, validation, and modifying method behavior in classes.