Run results for: set: innerHTML vs outerHTML

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

innerHTML (document)

2.5M/s

innerHTML (DOM)

2.1M/s

outerHTML (document)

1.7M/s

innerHTML (template)

358K/s

outerHTML (DOM)

336K/s

View exact numbers

Test name	Executions per second
✓ innerHTML (document)	2,478,785 Ops/sec
innerHTML (DOM)	2,062,228 Ops/sec
outerHTML (document)	1,678,997 Ops/sec
innerHTML (template)	357,765 Ops/sec
outerHTML (DOM)	336,049 Ops/sec

HTML Preparation code:

<div id="parent">
  <div id="child"></div>
</div>

Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
async function globalMeasureThatScriptPrepareFunction() {
    // This function is optional, feel free to remove it.
    // await someThing();
}

Tests:

outerHTML (document)
const el = document.getElementById("child"); el.outerHTML = `<div id="child"><p>TEST</p></div>`;
innerHTML (document)
const el = document.getElementById("child"); el.innerHTML = `<p>TEST</p>`;
outerHTML (DOM)
const template = document.createElement("template"); const el = document.createElement("div"); template.appendChild(el); el.outerHTML = `<div id="child"><p>TEST</p></div>`;
innerHTML (DOM)
const template = document.createElement("template"); const el = document.createElement("div"); template.appendChild(el); el.innerHTML = `<p>TEST</p>`;
innerHTML (template)
const template = document.createElement("template"); const el = document.createElement("div"); template.innerHTML = `<p>TEST</p>`; el.appendChild(template.content);