Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:63.0) Gecko/20100101 Firefox/63.0
Firefox 63
Mac OS X 10.10
Desktop
5 years ago
Test name Executions per second
getElementById() 310803.9 Ops/sec
getElementsByClassName() 302642.3 Ops/sec
getElementsByTagName() 411232.2 Ops/sec
querySelector(#id) 363901.0 Ops/sec
querySelector(.id) 422650.5 Ops/sec
querySelectorAll(#id) 114692.2 Ops/sec
querySelectorAll(.id) 155549.0 Ops/sec
jQuery(#id) 529954.4 Ops/sec
jQuery(.id) 100270.6 Ops/sec
jQuery(tag#id) 49662.0 Ops/sec
jQuery(tag.id) 62276.7 Ops/sec
jQuery + getElementById 390847.9 Ops/sec
jQuery + getElementsByClassName 119260.3 Ops/sec
HTML Preparation code:
Tests:
  • getElementById

  • getElementsByClassName

  • getElementsByTagName

  • querySelector (#id)

  • querySelector (.id)

  • querySelectorAll (#id)

  • querySelectorAll (.id)

  • Cash (#id)

  • Cash (.id)

  • Cash (tag#id)

  • Cash (tag.id)

  • Cash + getElementById

  • Cash + getElementsByClassName

  • jQuery (#id)

  • jQuery (.id)

  • jQuery (tag#id)

  • jQuery (tag.id)

  • jQuery + getElementById

  • jQuery + getElementsByClassName