How do Vue.js lifecycle hooks work with promises?

Can you explain how Vue.js lifecycle hooks work with promises?

Sure! Vue.js lifecycle hooks are methods that allow you to run code at specific stages of a component's lifecycle. When working with promises, you can use these hooks to handle asynchronous operations effectively.

Which lifecycle hooks are best for handling promises?

The most commonly used hooks for promises are created and mounted. In created, you can fetch data before the component is rendered, while mounted is useful for operations that require the DOM to be fully loaded.

Can you give an example of using a promise in the created hook?

Absolutely! Here's a simple example:

export default {
  data() {
    return { userData: null };
  },
  created() {
    fetch('https://api.example.com/user')
      .then(response => response.json())
      .then(data => {
        this.userData = data;
      });
  }
};

This fetches user data when the component is created.

What happens if the promise fails?

If the promise fails, you can handle errors using the .catch() method. It's a good practice to include error handling to manage any issues that arise during the data fetching process.