tagName vs instanceof (version: 0)

Comparing performance of: instanceof vs tagName vs nodeName vs localName vs __proto__

Created: 6 years ago by: Registered User
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Script Preparation code:
Tests:

Historical Performance Data aggregated from 31 community runs

Desktop Results:
Chrome 19 runs
localName
4.9M/s
__proto__
4.8M/s
nodeName
4.7M/s
tagName
4.7M/s
instanceof
4.4M/s

Fastest: localName (1.1x faster)

View exact numbers
  • ✓ localName: 4,937,644 ops/sec
  • • __proto__: 4,754,514 ops/sec
  • • nodeName: 4,693,380 ops/sec
  • • tagName: 4,686,348 ops/sec
  • • instanceof: 4,355,446 ops/sec
Firefox 12 runs
nodeName
16.4M/s
__proto__
16.2M/s
localName
16.2M/s
instanceof
15.7M/s
tagName
14.6M/s

Fastest: nodeName (1.1x faster)

View exact numbers
  • ✓ nodeName: 16,433,140 ops/sec
  • • __proto__: 16,247,340 ops/sec
  • • localName: 16,226,304 ops/sec
  • • instanceof: 15,701,998 ops/sec
  • • tagName: 14,632,440 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    instanceof
    tagName
    nodeName
    localName
    __proto__

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 9 months ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Chrome 141 on Windows
View result in a separate tab
__proto__
7.8M/s
instanceof
6.3M/s
localName
6.1M/s
tagName
5.9M/s
nodeName
5.8M/s
View exact numbers
Test name Executions per second
✓ __proto__ 7,781,024 Ops/sec
instanceof 6,272,784 Ops/sec
localName 6,131,639 Ops/sec
tagName 5,864,680 Ops/sec
nodeName 5,822,864 Ops/sec

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