Run results for: ArrayBuffer.isView vs instanceof

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.4 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

instanceof false

517.1M/s

instanceof true

499.6M/s

ArrayBuffer.isView false

182.7M/s

ArrayBuffer.isView true

164.0M/s

View exact numbers

HTML Preparation code:

<script>
  const buffer = crypto.getRandomValues(new Uint8Array(10))
  const nobuffer = [...Array(10).keys()]
</script>

Tests: