How do I create custom directives in Vue 3?

How do I create custom directives in Vue 3?

To create a custom directive in Vue 3, you can use the app.directive method. Here's a simple example.

Can you show me a code example?

Sure! Here's a basic example of a custom directive that changes the text color:

app.directive('color', {
  beforeMount(el, binding) {
    el.style.color = binding.value;
  }
});

You can use it in your template like this:

<p v-color="'red'">This text will be red.</p>

What are some use cases for custom directives?

Custom directives can be used for various purposes, such as handling DOM manipulations, adding event listeners, or integrating third-party libraries.