In Production environment, v-model triggers a ReferenceError

Question

In Production environment, v-model triggers a ReferenceError

My Vue View includes the following code:

<script setup>
import Overwrite from "../components/Overwrite.vue";
</script>
<template>
  <div>

      ...

      <textarea v-model="text" cols="99" rows="20"></textarea>

      ... 

  </div>
</template>

<script>
export default {
  data() {
    return {
      text: ""
    };
  },
  components: { Overwrite: Overwrite },
};
</script>

During development, everything functions correctly when using npm run dev.

However, after building the application for production and running it, I encounter an error as soon as content is typed into the textarea:

index.57b77955.js:3 Uncaught ReferenceError: text is not defined
    at HTMLTextAreaElement.t.onUpdate:modelValue.s.<computed>.s.<computed> [as _assign] (index.57b77955.js:3:1772)
    at HTMLTextAreaElement.<anonymous> (vendor.31761432.js:1:53163)

This issue also affects other form elements within the application.

javascript vue.js npm

Answer 1

Answer №1

Limit the usage to only 1 <script> tag and 1 <script setup> per Vue component.

Their outputs will be combined, and the resulting object from merging their exports will be accessible in <template>.

However, it's important to note that they are not linked. This means that one script tag cannot access the imports of the other.

An issue arises when the first <script setup> declares Overwrite upon importing it (to be used in

<template></code), but the second script overwrites it by using <code>components: { Overwrite: Overwrite }

, as Overwrite is undefined in the second script. This results in:

components: { Overwrite: undefined }

, hence overriding the value set by <script setup>.

There are two potential solutions:

Solution A:

<script>
import Overwrite from "../components/Overwrite.vue";
export default {
  components: {
    Overwrite
  },
  // Use `setup` instead of `data`
  setup: () => ({
    text: ref('')
  })
}
</script>

Solution B:

<script setup>
import Overwrite from "../components/Overwrite.vue";
const text = ref('')
</script>

Alternatively:

<script setup>
import Overwrite from "../components/Overwrite.vue";
</script>
<script>
export default {
  data: () => ({ text: "" })
};
</script>

Answer 2

Limit the usage to only 1 <script> tag and 1 <script setup> per Vue component.

Their outputs will be combined, and the resulting object from merging their exports will be accessible in <template>.

However, it's important to note that they are not linked. This means that one script tag cannot access the imports of the other.

An issue arises when the first <script setup> declares Overwrite upon importing it (to be used in

<template></code), but the second script overwrites it by using <code>components: { Overwrite: Overwrite }

, as Overwrite is undefined in the second script. This results in:

components: { Overwrite: undefined }

, hence overriding the value set by <script setup>.

There are two potential solutions:

Solution A:

<script>
import Overwrite from "../components/Overwrite.vue";
export default {
  components: {
    Overwrite
  },
  // Use `setup` instead of `data`
  setup: () => ({
    text: ref('')
  })
}
</script>

Solution B:

<script setup>
import Overwrite from "../components/Overwrite.vue";
const text = ref('')
</script>

Alternatively:

<script setup>
import Overwrite from "../components/Overwrite.vue";
</script>
<script>
export default {
  data: () => ({ text: "" })
};
</script>

Answer 3

Answer №2

Is it worth trying to utilize solely the setup script tag? It seems counterintuitive to use it only for imports in this manner. If you're importing a component within setup script tags, there's no need to specify components - perhaps the issue stems from that.

Alternatively, you could experiment with the complete setup approach:

<script setup>
import { ref } from 'vue'
import Overwrite from "../components/Overwrite.vue";

const text = ref('')
</script>

<template>
  <div>

      ...

      <textarea v-model="text" cols="99" rows="20"></textarea>

      ... 

  </div>
</template>

Answer 4

Is it worth trying to utilize solely the setup script tag? It seems counterintuitive to use it only for imports in this manner. If you're importing a component within setup script tags, there's no need to specify components - perhaps the issue stems from that.

Alternatively, you could experiment with the complete setup approach:

<script setup>
import { ref } from 'vue'
import Overwrite from "../components/Overwrite.vue";

const text = ref('')
</script>

<template>
  <div>

      ...

      <textarea v-model="text" cols="99" rows="20"></textarea>

      ... 

  </div>
</template>

In Production environment, v-model triggers a ReferenceError

Answer №1

Answer №2

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