JavaScript built-in: Intl: Locale: region

IE

  1. 6 - 10: Not supported
  2. 11: Not supported

Edge

  1. 12 - 18: Not supported
  2. 79 - 122: Supported
  3. 123: Supported

Firefox

  1. 2 - 74: Not supported
  2. 75 - 123: Supported
  3. 124: Supported
  4. 125 - 127: Supported

Chrome

  1. 4 - 73: Not supported
  2. 74 - 122: Supported
  3. 123: Supported
  4. 124 - 126: Supported

Safari

  1. 3.1 - 13.1: Not supported
  2. 14 - 17.3: Supported
  3. 17.4: Supported
  4. TP: Supported

Opera

  1. 10 - 60: Not supported
  2. 62 - 107: Supported
  3. 108: Supported

Safari on iOS

  1. 3.2 - 13.7: Not supported
  2. 14 - 17.3: Supported
  3. 17.4: Supported

Opera Mini

  1. all: Support unknown

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 122: Supported

Opera Mobile

  1. 12 - 12.1: Not supported
  2. 80: Supported

Chrome for Android

  1. 122: Supported

Firefox for Android

  1. 123: Supported

UC Browser for Android

  1. 15.5: Support unknown

Samsung Internet

  1. 4 - 10.1: Not supported
  2. 11.1 - 22: Supported
  3. 23: Supported

QQ Browser

  1. 14.9: Support unknown

Baidu Browser

  1. 13.52: Support unknown

KaiOS Browser

  1. 2.5: Support unknown
  2. 3: Support unknown