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Vue implements tabs in three ways: 1. Control tab content switching through "v-show"; 2. Implement tab switching through the is feature and "keep-alive" cache in vue; 3. Through "router" -link" to implement routing switching.
The operating environment of this tutorial: Windows 10 system, vue3 version, DELL G3 computer
What are the three ways to implement tab in vue?
3 ways for vue to implement tab switching and switching to maintain data status
1. v-show Control content switching
1. Simple version principle: Use the click event to change the num value as a switch to control the tab style and content display and hiding.
#2. Data rendering principle: mainly controlled by the index bound to v-for, similar to the above.
# 2. Component switching.
1. The knowledge points are mainly the characteristics of is in vue, and keep-alive cache
3. Route switching. (Friendly to the address bar and data requests)
Achieved through router-link.
When the page performs tab switching, since the component will be re-instantiated every time it is switched, we If you want the content in the tab to not be refreshed no matter how the page is switched, reducing page re-rendering and reducing requests
Implementation method: use
<el-tabs v-model="activeName" @tab-click="handleClick"> <el-tab-pane label="记录"> <keep-alive> <child1 v-if="isChildUpdate"></child1> </keep-alive> </el-tab-pane> </el-tabs>
List page jump details, the list page keeps the last operation status
This is achieved by whether to load the router-view and routing meta meta setting page whether the page needs to be cached
If the router-view is nested in multiple layers, you may need to set up multiple layers, and then listen for route departure through beforeRouteLeave and set whether to cache
//Jumping from other pages does not require caching the page. Returning from the details page requires caching
Recommended learning: "vue video tutorial"
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