CodePen Embed - [Vanilla Component] AS-IS

<h1 class="title-count">Count: 0</h1>
<p class="content-count">Count: 0</p>
<p class="content-count2">Count: 0</p>
<button id="countBtn">Count + 1</button>

const titleEl = document.querySelector('.title-count');
const contentEl = document.querySelector('.content-count');
const content2El = document.querySelector('.content-count2');
const countBtnEl = document.querySelector('#countBtn');

let count = 0;

countBtnEl.addEventListener('click', () => {
  count++;

  titleEl.textContent = `Count: ${count}`;
  contentEl.textContent = `Count: ${count}`;
  content2El.textContent = `Count: ${count}`;
  
});

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