How can I handle asynchronous validation in Vue?

How can I handle asynchronous validation in Vue?

You can handle asynchronous validation in Vue by using the async and await keywords in your validation methods.

Can you give me an example of how to implement that?

Sure! You can create a method that checks the validity of a username by making an API call. Here's a simple example:

methods: {
  async validateUsername(username) {
    const response = await axios.get(`/api/validate-username?username=${username}`);
    return response.data.isValid;
  }
}

What if I want to show a loading indicator while validating?

You can use a data property to track the loading state. Set it to true before the API call and false after. Then, conditionally render a loading spinner in your template.

That makes sense! How do I handle errors during validation?

You can use a try-catch block around your API call to handle any errors. In the catch block, you can set an error message to display to the user.