JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" value="hello" test="123"> <button id="submitBtn">送出</button>

<div>
  使用者資料:
    <div id="userData"></div>
</div>

JavaScript

$("#submitBtn").click(function() {
    var value = $("input").val();
    var test = $("input").val();
    $("#userData").text( value );
});