classList (DOMTokenList)

- LS

Method of easily manipulating classes on elements, using the DOMTokenList object.

IE

  1. 5.5 - 9
  2. 10
  3. 11

Edge

  1. 12 - 81
  2. 83

Firefox

  1. 2 - 3.5
  2. 3.6 - 23
  3. 24 - 25
  4. 26 - 77
  5. 78
  6. 79 - 80

Chrome

  1. 4 - 7
  2. 8 - 22
  3. 23
  4. 24 - 27
  5. 28 - 81
  6. 83
  7. 84 - 86

Safari

  1. 3.1 - 5
  2. 5.1 - 6.1
  3. 7 - 13
  4. 13.1
  5. 14 - TP

Opera

  1. 9 - 11.1
  2. 11.5 - 12.1
  3. 15 - 68
  4. 69

iOS Safari

  1. 3.2 - 4.3
  2. 5 - 6.1
  3. 7 - 13.3
  4. 13.4
  5. 14.0

Opera Mini

  1. all

Android Browser

  1. 2.1 - 2.3
  2. 3 - 4.3
  3. 4.4 - 4.4.4
  4. 81

Blackberry Browser

  1. 7
  2. 10

Opera Mobile

  1. 10 - 11
  2. 11.1 - 12.1
  3. 46

Chrome for Android

  1. 81

Firefox for Android

  1. 68

IE Mobile

  1. 10
  2. 11

UC Browser for Android

  1. 12.12

Samsung Internet

  1. 4 - 11.2
  2. 12.0

QQ Browser

  1. 10.4

Baidu Browser

  1. 7.12

KaiOS Browser

  1. 2.5
Resources:
MDN Web Docs - Element.classList
Polyfill script
Mozilla Hacks article
Demo using classList
SitePoint article
WebPlatform Docs