Guide on transitioning my Vue 3 Options API code to the Composition API

Seeking guidance on transitioning code from Vue's Options API to the Composition API. Specifically, how can I convert the provided options api grammar into composition api grammar?

I currently have this code in a form and need help updating it to use Vue's Composition API.

    data: {
        text: ""
    },
    methods:{
        resetForm: function(e) {
            e.preventDefault()
            this.$data.text = ""
        }
    }

Answer №1

<script setup>
import { ref } from 'vue'

const userInput = ref('');
const clearInput = () => {
  userInput.value = '';
}
</script>

<template>
  <p>User input is: {{ userInput }}</p>
    <input v-model="userInput" placeholder="enter text here" />
  <button @click="clearInput">
    Clear Input
  </button>
</template>

If working in separate files

export default {
  setup() {
    const userInput = ref('');
    const clearInput = () => {
      userInput.value = '';
    };

    return { userInput, clearInput };
  }
}

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