What are Vue.js router guards and how do they work?

What are Vue.js router guards and how do they work?

Vue.js router guards are functions that control access to routes in a Vue application. They can be used to protect routes, redirect users, or perform checks before entering a route.

Can you explain the different types of router guards?

Sure! There are three main types of router guards: global guards, per-route guards, and in-component guards. Global guards apply to all routes, per-route guards are defined on specific routes, and in-component guards are defined within the component itself.

How do I implement a navigation guard in my Vue app?

To implement a navigation guard, you can use the beforeEach method in your router configuration. For example:

router.beforeEach((to, from, next) => {
  // Perform checks here
  next(); // Call next() to proceed or next('/login') to redirect
});

What happens if I don't use router guards?

If you don't use router guards, any user can access any route in your application without restrictions, which may lead to unauthorized access to certain parts of your app.