<button id="btn">召喚</button>
<div id="stage"></div>
const btn = document.querySelector('#btn');
const stage = document.querySelector('#stage');
btn.addEventListener('click', function() {
for (let i = 0; i < 100; i++) {
const emoji = document.createElement('span');
emoji.textContent = '赤dkjふぁskjdfじゃsdf';
stage.appendChild(emoji);
}
});