How to view the page stack in vue

Vue is a very popular JavaScript framework, loved by many developers for its efficient and flexible features and simple and easy-to-use API. In Vue, the page stack refers to the stack structure of all pages rendered in the browser, which is used to record browsing history and jump records. The management of the page stack plays a crucial role in page jumps and user interaction. So, how to view the page stack? This article will introduce in detail how to view the page stack in Vue.

1. Vue Router

Vue Router is the official routing manager of Vue, which can easily manage the routing and jumps of the website, and can also easily view the page stack. Vue Router provides a global property $router, which can be accessed in the component. The routing information of the current page can be obtained through $router, and the relevant information of the page stack can be obtained in the routing information.

You can access the $router object in the component through the following code:

this.$router

You can get all the information of the current route through $router, including:

• path : The path of the current route
• params: The parameters of the current route
• query: The query parameters of the current route
• name: The name of the current route
• meta: Metadata of the current route

For the page stack, you can get the position of the current page in the page stack through the following code:

const routeIndex = this.$router.history.current.index; 

Get the position of the current page in the page stack After that, you can get the routing information of the previous page or the next page based on the location information, which is achieved through the following code:

const prevRoute = this.$router.history.get(routeIndex-1);
const nextRoute = this.$router.history.get(routeIndex+1);

2. Vuex

Vuex is the official version of Vue A state manager that can easily manage the application's state and data. In Vuex, you can use state management to record page stack information. You can define an array in Vuex to store the page stack, and then access the page stack through Vuex's helper function in the component. The following code shows how to store page stack information in Vuex.

const store = new Vuex.Store({
  state: {
    pageStack: [],
  },
  mutations: {
    pushPage (state, page) {
      state.pageStack.push(page);
    },
    popPage (state) {
      state.pageStack.pop();
    },
    clearPageStack (state) {
      state.pageStack = [];
    }
  }
});

In the component, you can access the page stack information stored in Vuex through the following code:

this.$store.state.pageStack

You can also access the page stack information through the auxiliary function, for example:

import { mapState } from 'vuex'

export default {
  computed: {
    ...mapState({
      pageStack: state => state.pageStack
    })
  }
}

3. window.history

In the browser, the window object provides the history attribute, through which the page stack information can be accessed. Through the window.history.length property, you can get the length of the page stack, that is, the number of pages that have been visited in the browser.

The following code shows how to access the page stack information through window.history:

window.history.length //获取页面栈的长度
window.history.back() //后退到上一页
window.history.forward() //前进到下一页

Use window.history.back() to go back to the previous page and get the previous page at the same time access information. Use window.history.forward() to advance to the next page and obtain access information for the next page.

Summary:

There are many ways to view the page stack in Vue, including Vue Router, Vuex and window.history. During development, developers can choose different methods to view the page stack according to different needs. At the same time, understanding the relevant knowledge of the page stack will also help developers understand Vue's routing management and state management more deeply, so as to develop Vue applications more efficiently.

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