How can I handle error messages in Vue 3?

How can I handle error messages in Vue 3?

In Vue 3, you can handle error messages using the built-in error handling features. You can use the errorCaptured lifecycle hook to catch errors in child components.

Can you give me an example of using errorCaptured?

Sure! Here's a simple example:

export default {
  errorCaptured(err, vm, info) {
    console.error('Error captured:', err);
    // Handle the error, e.g., show a notification
    return false; // Prevent the error from propagating further
  }
};

What about global error handling?

For global error handling, you can use the app.config.errorHandler method to define a global error handler for your Vue app.

How do I display error messages to users?

You can use a reactive property to store error messages and display them in your template. For example:

<template>
  <div v-if="errorMessage">{{ errorMessage }}</div>
</template>