Run results for: getElementById vs querySelector vs map.get

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

map.get

24.7M/s

getElementById

12.2M/s

querySelector

6.8M/s

View exact numbers

HTML Preparation code:

<div id="test-id" />

<script>
  const map = new Map()
</script>

Script Preparation code:

map.set("test-id", document.getElementById("test-id"))

Tests: