Run results for: createElement vs innerHTML for creating elements in DOM

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 14

Operating system: iOS 14.6

Device Platform: Mobile

Date tested: one year ago

HTML Preparation code:

<div id="container"></div>

Tests:

createElement
const container = document.getElementById('container'); container.innerHTML = ''; for (let i = 0; i < 1000; i++) { const div = document.createElement('div'); const p = document.createElement('d'); p.classList.add('font-bold'); p.textContent = 'Hello'+i+'!'; div.appendChild(p); container.appendChild(div); } /*cleanup*/ container.innerHTML = '';
innerHTML
const container = document.getElementById('container'); container.innerHTML = ''; for (let i = 0; i < 1000; i++) { container.innerHTML += '<div><p class="font-bold">Hello'+i+'!</p></div>'; } /*cleanup*/ container.innerHTML = '';
innerHTML append
const container = document.getElementById('container'); container.innerHTML = ''; for (let i = 0; i < 1000; i++) { container.append('<div><p class="font-bold">Hello'+i+'!</p></div>'); } /*cleanup*/ container.innerHTML = '';