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Vue Tip: Use Two Script Blocks

Michael Hoffmann (Mokkapps) - Senior Frontend Developer (Freelancer)
Feb 14, 2022
1 min read
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Use Two Script Blocks  Image

If you are using the new <script setup> syntax, you may run into a case where you need some Options API functionality. In this case, adding an additional <script> block to your component is possible. Vue will mix the two together for you, so the Composition API and Options API codes can remain separate.

You may need a regular <script> block in these cases:

  • Use the Options API to declare options that cannot be expressed in <script setup>, for example, inheritAttrs or custom options enabled via plugins.
  • Run side effects or create objects that should only execute once because setup() is run for every component.
  • Declare named exports which allow exporting multiple things from one file.
<script>// Normal <script> using Options API, executed in module scope (only once)runSideEffectOnce()// Here you can declare additional optionsexport default {  name: 'MyComponent',  inheritAttrs: false,  customOptions: {},}</script><script setup>// Composition API: executed in setup() scope (for each instance)import { ref } from 'vue'console.log('Setting up new component instance')const count = ref(0)</script>

This feature is officially supported and documented.


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