Run results for: insertAdjacentHtml vs innerHTML (no initial contents)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:129.0) Gecko/20100101 Firefox/129.0

Browser: Firefox 129

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

insertAdjacentHTML

278K/s

innerHTML

221K/s

View exact numbers

Test name	Executions per second
✓ insertAdjacentHTML	278,060 Ops/sec
innerHTML	220,833 Ops/sec

Script Preparation code:

const targetElem = document.createElement( 'DIV' );
targetElem.id = 'target';
document.body.appendChild( targetElem );

Tests:

innerHTML
document.getElementById( 'target' ).innerHTML = ` <div> <span>Child 4</span> </div> `;
insertAdjacentHTML
document.getElementById( 'target' ).insertAdjacentHTML( 'beforeend', ` <div> <span>Child 4</span> </div> ` );