JSFiddle - React, Tailwind, and code Playground

by shnny

HTML

<button onClick="mybtn()">我要訂購</button>

<br><br>
請輸入姓名:<input class="myname" type="text" >
<p>您的訂單</p>
<p>顧客姓名:<span class="name"></span></p>

JavaScript

function mybtn(){
	alert('你好')
	let name = document.querySelector('.myname').value
  let myname = document.querySelector('.name')
  myname.textContent = name
}