How to Fix Vue Script Setup

The Problem

In this quick-fix, you will learn using script setup for Composition API. This matters because script setup is the recommended way to use Composition API. In real-world applications, this pattern appears in any new Vue 3 component.

The Wrong Way

<script>
export default {
  setup() {
    const count = ref(0);
    return { count };
  }
};
</script>

Incorrect implementation

The Right Way

<script setup>
const count = ref(0);
</script>

Correct implementation with Composition API

Prevention

• Always use the official API
• Follow Vue best practices
• Test your implementation
• Document your patterns

FAQ

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