The v-data-table data is not displaying correctly because of an error message stating: "Invalid prop: type check failed for prop 'items'. Expected Array, but received Object instead."

As I embark on a new project involving Vue, I find myself in uncharted territory as a beginner. While aware that similar questions have been addressed before, the solutions provided thus far have eluded my understanding, prompting me to seek clarity here.

The issue at hand revolves around displaying data on my Data Table, particularly utilizing v-data-table from Vuetify. Although I managed to retrieve the data from the API successfully, it stubbornly refuses to appear on the table. Despite confirming through Vuex that the mutation was successful (as evidenced by the displayed Array of objects in Chrome's console), the table remains barren, with a disheartening 'no data available' message. Error messages such as '[Vue warn]: Invalid prop: type check failed for prop "items". Expected Array, got Object' and 'TypeError: this.items.slice is not a function' only compound my confusion.

Below is the code snippet extracted from List.vue:

<template>
  <v-container id="data-tables" tag="section">
    <!-- Code content goes here -->
  </v-container>
</template>

<script>
// JavaScript code goes here
</script>

Additionally, the user.js file is integral to understanding the fetchUsers functionality:

// JavaScript code from user.js

Your insights and suggestions are greatly appreciated. Thank you in advance.

Answer №1

Your vuex implementation is causing issues with retrieving the correct user. To fix this, make sure to namespace it like so:

computed: {
  ...mapState('users',['users']),
},

Answer №2

The MapState helper has a unique implementation compared to other helpers due to the state module not being registered in the global namespace. Therefore, for proper functionality, it is recommended to namespace your module or use the following syntax:

computed: { 
    ...mapState({
      users: state => state.YourModuleNameHere.users
    })
}

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