this.$router.re

这段代码似乎不完整，可能是一个 vue-router 的路由跳转方法，但是缺少了后面的参数和方法名称。在 vue-router 中，路由跳转通常使用 $router.push() 或 $router.replace() 方法，其中 $router 是 Vue 实例中的一个属性，可以通过 this.$router 来访问。你可以提供完整的代码或补充更多的上下文信息，以便我能够更准确地回答你的问题。

相关问题

$router.push

$router.push is a method in Vue.js that allows you to navigate to a different route programmatically. It is used to navigate to another route in the same application without reloading the page.

The $router.push method takes one argument, which is an object that describes the route to navigate to. The object should have a path property that specifies the URL path of the route to navigate to.

For example, if you have a route with the path "/dashboard", you can navigate to it using the following code:

this.$router.push({ path: '/dashboard' })

You can also pass other properties in the object, such as query parameters or route parameters.

this.$router.push({ 
  path: '/product/:id', 
  params: { id: 123 }, 
  query: { lang: 'en' } 
})

In this example, we're navigating to a route with a dynamic parameter for the product ID. We're also passing a query parameter to specify the language.

Overall, $router.push is a powerful method that allows you to navigate between routes in Vue.js applications.

router.beforeEach

router.beforeEach is a method in Vue Router that is used to register a global navigation guard. This method is called before each route navigation and allows you to control access to the routes based on certain conditions.

For example, you can use this method to check if the user is authenticated before allowing access to protected routes. If the user is not authenticated, you can redirect them to the login page.

The syntax for using router.beforeEach is as follows:

router.beforeEach((to, from, next) => {
  // your navigation guard logic here
})

The first parameter is a function that takes three arguments:

- `to`: the route object of the destination route
- `from`: the route object of the current route
- `next`: a callback function that must be called to proceed with the navigation

Inside the function, you can write your navigation guard logic and call the `next` function to proceed with the navigation or to redirect the user to a different route.

Here's an example of using router.beforeEach to check if the user is authenticated before allowing access to protected routes:

router.beforeEach((to, from, next) => {
  const isAuthenticated = checkAuthentication() // your authentication logic here

  if (to.meta.requiresAuth && !isAuthenticated) {
    next({ name: 'login' }) // redirect to login page
  } else {
    next() // proceed with the navigation
  }
})

In this example, we're checking if the destination route requires authentication (`to.meta.requiresAuth`) and if the user is authenticated (`isAuthenticated`). If the user is not authenticated, we're redirecting them to the login page (`next({ name: 'login' })`). If the user is authenticated, we're proceeding with the navigation (`next()`).