JSFiddle - React, Tailwind, and code Playground

by imall

HTML

<script src="https://unpkg.com/vue@3.3.4/dist/vue.global.js"></script>
<div id="app">
  <div>
    <span v-once>{{number}}</span>

  </div>

  <button @click="plus">點我!!</button>
</div>

JavaScript

const {ref}= Vue

const app = Vue.createApp({
    setup(){
        const number = ref(0)
        const plus = ()=>{
             number.value++
            console.log(number.value)
           
        }
        return { number,plus }
    }
}).mount('#app')