How can the ordering of dynamically generated components be synchronized with the order of other components?

Question

How can the ordering of dynamically generated components be synchronized with the order of other components?

Currently, I'm delving into Vue 3 and encountering a specific issue. The tabs library I'm using only provides tab headers without content panels. To work around this limitation, I've come up with the following solution:

<myTabs/><!-- < -- headers -->
<div v-for="tab in tabs" ><!-- < -- content -->
   <keep-alive>
      <component v-if="tab.active" :is="tab.component"></component>
   </keep-alive>
</div>

The tabs are defined as follows:

const tabs: Array<Tab> = reactive<Array<Tab>>([])

This approach involves iterating through the tabs to display only the active tab's content. However, a drawback arises when the order of tabs is changed (e.g., after swapping), causing a mismatch between the order of content and tabs.

For instance, if I have two tabs (0,1) and swap their positions to (1,0), accessing tab 1 may display the content of tab 0. Can anyone assist me in resolving this issue?

javascript typescript vue.js

Answer 1

Answer №1

Ensuring your v-for items have a distinguishing key attribute is crucial for Vue to properly keep track of item rendering. Without the key, Vue defaults to using the item index within the v-for, resulting in undesired VNode reuse.

To address this issue, assign a unique identifier as the key (such as an id property) to each v-for item:

<div v-for="tab in tabs" :key="tab.id">

Answer 2

Ensuring your v-for items have a distinguishing key attribute is crucial for Vue to properly keep track of item rendering. Without the key, Vue defaults to using the item index within the v-for, resulting in undesired VNode reuse.

To address this issue, assign a unique identifier as the key (such as an id property) to each v-for item:

<div v-for="tab in tabs" :key="tab.id">

How can the ordering of dynamically generated components be synchronized with the order of other components?

Answer №1

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