Detailed explanation of vue router routing jump method

Vue is a popular JavaScript framework that provides many useful features, including Vue Router. Vue Router is an officially recommended routing manager that can help you create a single page application (Single Page Application). Vue Router provides a variety of route jump methods, and this article will introduce these methods.

1. Route jump through router-link

Vue Router provides a component router-link to implement jump links. We can specify to in the component Attribute to set the target routing address, the code is as follows:

<router-link to="/home">Home</router-link>

The above code indicates jumping to the page with the routing address /home.

We can also insert variables into the value of the to attribute, so that dynamic routing can be achieved. For example:

<router-link :to="&#39;/user/&#39; + userId">User</router-link>

When the value of userId changes, the jump target will also change accordingly.

2. Route jump through router.push

Vue Router provides a global method router.push to implement route jump. We can pass this in the component. To call the $router.push method, the code is as follows:

this.$router.push('/home')

The above code indicates jumping to the page with the routing address of /home.

We can also pass an object in the push method to implement dynamic routing. For example:

this.$router.push({ path: '/user', query: { userId: 123 }})

The above code means to jump to the page with the routing address /user and bring a query parameter in the url.

3. Route jump through router.replace

Vue Router provides a global method router.replace to implement route jump. Different from router.push, router.replace will not leave a history record when jumping. The code is as follows:

this.$router.replace('/home')

Same as the push method, we can pass an object in the replace method to implement dynamic jump of the route.

4. Route jump through router.go

Vue Router provides a global method router.go to implement route jump, which can be rolled back or Advance pages in history. The code is as follows:

this.$router.go(-1)

The above code means to roll back a page.

5. Implement route guard through router.beforeEach

When we need to perform a series of operations before routing jump, Vue Router provides a route guard beforeEach.

We can define the beforeEach function in the global routing configuration. This function will be executed before each route jump. The code is as follows:

router.beforeEach((to, from, next) => {
  // ...
})

The to parameter represents the routing information to be jumped, and the from parameter Represents the routing information of the current page, and the next method is a callback function used to notify whether the routing jump is completed or how to jump.

We can verify user permissions, login status, etc. in the beforeEach function, and decide to jump or block the jump based on the verification results.

6. Implement route guard through router.afterEach

In addition to the beforeEach function, Vue Router also provides a global route guard afterEach, which also receives two parameters: to and from. The difference is that the afterEach function is executed after the route jump is completed.

We can update the status of the page or perform other operations in the afterEach function.

The above are the various routing jump methods provided by Vue Router. They are each suitable for different scenarios. We can choose to use them according to actual needs. It is worth mentioning that during the development process, we can view all routing information of Vue Router in the browser console, which is very helpful for debugging and development.

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