Error in Vue console: Uncaught TypeError - The variable "_ctx" is not defined on the specified value

Question

Error in Vue console: Uncaught TypeError - The variable "_ctx" is not defined on the specified value

I'm encountering an issue that is puzzling me:

Everything seems to be working perfectly as I try to display data from an API. However, I keep getting an error stating that personnel.departmentID is undefined, and unfortunately my vue-debug tool isn't providing any insights.

This error only occurs when I try to assign something from departmentID, while for other fields like firstName, lastName, it works fine.

What's strange is that the data for departmentID.name is displaying correctly, but still throws an error.

In the console, I see the following error:

Uncaught TypeError: _ctx.personnel.departmentID is undefined
    render edit_personnel.vue:64
    renderComponentRoot runtime-core.esm-bundler.js:846
    componentEffect runtime-core.esm-bundler.js:4280
    reactiveEffect reactivity.esm-bundler.js:42
    effect reactivity.esm-bundler.js:17
    setupRenderEffect runtime-core.esm-bundler.js:4263
    mountComponent runtime-core.esm-bundler.js:4222
    processComponent runtime-core.esm-bundler.js:4182
    patch runtime-core.esm-bundler.js:3791
    render runtime-core.esm-bundler.js:4883
    mount runtime-core.esm-bundler.js:3077
    mount runtime-dom.esm-bundler.js:1259
    js personnel_edit.js:4
    Webpack 7

Although the value is displayed correctly

Here is the input displayed with correct data

And here is the response

<input type="text" class="form-control" v-model="personnel.departmentID.name" :key="personnel.departmentID.name" />
    </form>
  </div>
</template>

<script>

export default {
  name: "edit_personnel",
  data: () => ({
    personnel: [],
    departments: [],
    location: [],
    loaded: false,
  }),
  async created() {
    await fetch(window.currentUserId)
        .then(response => response.json())
        .then(data => {
          this.personnel = data;
          this.loaded = true;
        });
  }
}
</script>

javascript vue.js vuejs3

Answer 1

Answer №1

It is important to ensure that your personnel data is handled as an async action, which requires implementing a v-if directive on the input element to prevent any errors during loading.

To resolve this issue, make sure to update your data structure from an array to an object:

personnel: {}

Furthermore, adjust your template code as follows:

<input
  v-if="personnel.departmentID"
  type="text" 
  class="form-control" 
  v-model="personnel.departmentID.name" 
  :key="personnel.departmentID.name" />
</form>
</div>
</template>

Answer 2

It is important to ensure that your personnel data is handled as an async action, which requires implementing a v-if directive on the input element to prevent any errors during loading.

To resolve this issue, make sure to update your data structure from an array to an object:

personnel: {}

Furthermore, adjust your template code as follows:

<input
  v-if="personnel.departmentID"
  type="text" 
  class="form-control" 
  v-model="personnel.departmentID.name" 
  :key="personnel.departmentID.name" />
</form>
</div>
</template>

Answer 3

Answer №2

To begin, make sure to initialize the personnel property like this:

      data: () => ({
        personnel: {
                  departmentID:{name:'' }
                },
        departments: [],
        location: [],
        loaded: false,
      }),
      async loadEmployees() {
        // Code for loading employees goes here
      }

It's important to set the initial value of departmentID to prevent it from being undefined during the first rendering.

Answer 4

To begin, make sure to initialize the personnel property like this:

      data: () => ({
        personnel: {
                  departmentID:{name:'' }
                },
        departments: [],
        location: [],
        loaded: false,
      }),
      async loadEmployees() {
        // Code for loading employees goes here
      }

It's important to set the initial value of departmentID to prevent it from being undefined during the first rendering.

Error in Vue console: Uncaught TypeError - The variable "_ctx" is not defined on the specified value

Answer №1

Answer №2

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