Run results for: getElementById vs querySelector vs map.get

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser: Chrome 143

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

map.get

169.7M/s

getElementById

41.3M/s

querySelector

8.1M/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: