Run results for: jsperfwasmuchmorecomfortable

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36

Browser: Chrome 84

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
A - innerHTML	79.3 Ops/sec
B - insertAdjacentHTML	100956.2 Ops/sec
C - createElement	123356.5 Ops/sec

Script Preparation code:

const targetElem = document.createElement( 'DIV' );
targetElem.id = 'target';

targetElem.innerHTML = `
	<div>
		<span>Child 1</span>
	</div>
	<div>
		<span>Child 2</span>
	</div>
	<div>
		<span>Child 3</span>
	</div>
`;

document.body.appendChild( targetElem );

Tests:

A - innerHTML
document.getElementById( 'target' ).innerHTML += ` <div> <span>Child 4</span> </div> `;
B - insertAdjacentHTML
document.getElementById( 'target' ).insertAdjacentHTML( 'beforeend', ` <div> <span>Child 4</span> </div> `);
C - createElement
const newChild = document.createElement( 'DIV' ); const newChildChild = document.createElement( 'SPAN' ); newChildChild.innerHTML = 'Child 4'; newChild.appendChild( newChildChild ); document.getElementById( 'target' ).appendChild( newChild );

Run results for: jsperfwasmuchmorecomfortable

...

A - innerHTML

B - insertAdjacentHTML

C - createElement