is v-tab-item in vuetify 3

Lussy04

2 min read

·

24-01-2025

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The short answer is: No, v-tab-item is not directly present in Vuetify 3. Vuetify 3 significantly restructured its components, moving away from the v-tab-item approach used in Vuetify 2. This change improves performance and aligns more closely with modern Vue.js practices.

However, the functionality of v-tab-item is still achievable, albeit with a different approach. Let's explore how to create tabs in Vuetify 3 and understand the underlying changes.

Understanding the Vuetify 3 Tab Component: v-tabs

In Vuetify 3, tabs are handled primarily through the v-tabs component. This component is far more flexible and powerful than its predecessor. Instead of relying on separate v-tab-item components, you use slots within the v-tabs component to define the content for each tab.

How to Create Tabs in Vuetify 3

Here's a basic example showcasing how to build tabs in Vuetify 3:

<template>
  <v-tabs v-model="activeTab">
    <v-tab value="tab-1">Tab 1</v-tab>
    <v-tab value="tab-2">Tab 2</v-tab>
    <v-tab value="tab-3">Tab 3</v-tab>

    <v-tabs-items v-model="activeTab">
      <v-tab-item value="tab-1">
        <v-card flat>
          <v-card-text>Content for Tab 1</v-card-text>
        </v-card>
      </v-tab-item>

      <v-tab-item value="tab-2">
        <v-card flat>
          <v-card-text>Content for Tab 2</v-card-text>
        </v-card>
      </v-tab-item>

      <v-tab-item value="tab-3">
        <v-card flat>
          <v-card-text>Content for Tab 3</v-card-text>
        </v-card>
      </v-tab-item>
    </v-tabs-items>
  </v-tabs>
</template>

<script>
export default {
  data: () => ({
    activeTab: 'tab-1',
  }),
};
</script>

This code uses:

• v-tabs: The main container for the tabs. v-model binds the active tab to the activeTab data property.
• v-tab: Defines each individual tab. The value prop assigns a unique identifier to each tab.
• v-tabs-items: This component houses the content for each tab, managed by the v-model binding.
• v-tab-item: Crucially, v-tab-item is used here, but within the v-tabs-items structure. It's not a standalone component like in Vuetify 2.

Migrating from Vuetify 2

If you're migrating from Vuetify 2, you'll need to refactor your code to use the v-tabs and v-tabs-items structure shown above. The core principle remains the same – associating tab headers with their corresponding content – but the implementation is different. This new structure offers enhanced performance and a more streamlined approach.

Addressing Common Concerns

• Scoping: Vuetify 3's slot-based approach helps ensure proper scoping of components and data, reducing potential conflicts and improving maintainability.
• Performance: The revised tab structure is generally more performant than the previous v-tab-item system. Vuetify 3 optimizes rendering based on the currently active tab.
• Flexibility: The new system offers more flexibility in terms of styling and customization options.

By understanding the shift to the v-tabs and v-tabs-items structure, you can effectively implement tabs in your Vuetify 3 applications, maintaining the functionality you need while benefiting from improved performance and maintainability. Remember to consult the official Vuetify 3 documentation for the most up-to-date information and advanced usage examples.