Complete Vue.js 2 Web Development_ Practical guide to building end-to-end web development solutions with Vue.js 2

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Vue Router Patterns Chapter 20

beforeRouteEnter

We can also take advantage of beforeRouteEnter to perform actions prior to entering the


component route. Here's an example:


beforeRouteEnter(to, from, next) {
console.log(`I'm called before entering the route!`)
next();
}

We still have to call next to pass the stack down to the next route handler.


beforeRouteLeave

We can also hook into beforeRouteLeave to perform actions whenever we're navigating


away from a route. As we're already on this route within the context of this hook, we have
access to the component instance. Let's look at an example:


beforeRouteLeave(to, from, next) {
console.log(`I'm called before leaving the route!`)
console.log(`I have access to the component instance, here's proof!
Name: ${this.name}`);
next();
}

Once again, we have to call next in this instance.


Global router hooks


We've looked at component Navigation Guards and while these work on a component-by-


component basis, you may want to establish global hooks that listen to navigation events.


beforeEach

We can use router.beforeEach to listen for routing events globally across the


application. This is worth using if you have authentication checks or other pieces of


functionality that should be used in every route.

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