What are navigation guards in Vue.js Router?

What are navigation guards in Vue.js Router?

Navigation guards are functions that control access to routes in a Vue.js application. They can be used to check authentication, permissions, or perform other checks before allowing navigation.

How do I implement a global navigation guard?

You can implement a global navigation guard by using the beforeEach method on the router instance. For example:

router.beforeEach((to, from, next) => {
  // Perform checks here
  next(); // Call next() to proceed to the route
});

Can I use navigation guards for route-specific checks?

Yes, you can define navigation guards directly in the route definitions using the beforeEnter property. This allows you to perform checks specific to that route.

What happens if I call next(false) in a guard?

Calling next(false) will abort the navigation, preventing the user from entering the target route.