What are the differences between decorators and modifiers in JavaScript?

What are the differences between decorators and modifiers in JavaScript?

Decorators are functions that modify the behavior of classes or methods, while modifiers typically change properties or methods directly.

Can you give me an example of a decorator in JavaScript?

Sure! Here's a simple example of a decorator that logs method calls:

function log(target, key, descriptor) {
    const originalMethod = descriptor.value;
    descriptor.value = function(...args) {
        console.log(`Calling ${key} with`, args);
        return originalMethod.apply(this, args);
    };
    return descriptor;
}

How do modifiers work in JavaScript?

Modifiers in JavaScript can be simple functions that change the properties of an object or the behavior of a method directly, without the need for decorators.

Are decorators supported in all JavaScript environments?

Decorators are a stage 2 proposal in JavaScript, so they are not natively supported in all environments yet. You can use Babel or TypeScript for support.