What are the best practices for using router guards in Vue CLI?

What are the best practices for using router guards in Vue CLI?

When using router guards in Vue CLI, it's important to keep your code organized and maintainable. Here are some best practices:

1. Use Named Guards: This makes it easier to manage and understand your guards.
2. Keep Logic Simple: Avoid complex logic in guards; instead, delegate to services or store actions.
3. Use Async/Await: For asynchronous operations, use async/await for better readability.
4. Centralize Guards: Consider centralizing your guards in a single file for easier management.

Can you give an example of a named guard?

Sure! Here's a simple example of a named guard:

const isAuthenticated = (to, from, next) => {
  const isLoggedIn = !!localStorage.getItem('user');
  if (isLoggedIn) {
    next(); // Proceed to the route
  } else {
    next('/login'); // Redirect to login
  }
};

router.beforeEach(isAuthenticated);

This guard checks if a user is logged in before allowing access to certain routes.

What should I do if I have multiple guards?

If you have multiple guards, you can chain them together using next() to control the flow. You can also group related guards into a single function or use a centralized guard management approach to keep your code clean and organized.

Are there any performance considerations I should be aware of?

Yes, performance is important! Avoid heavy computations in guards, as they can slow down navigation. Use caching where possible and ensure that any asynchronous operations are optimized to prevent delays in route transitions.