JavaScript built-in: Symbol: for

IE

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

Edge

  1. 12 - 104: Supported
  2. 105: Supported

Firefox

  1. 2 - 35: Not supported
  2. 36 - 104: Supported
  3. 105: Supported
  4. 106 - 107: Supported

Chrome

  1. 4 - 39: Not supported
  2. 40 - 104: Supported
  3. 105: Supported
  4. 106 - 108: Supported

Safari

  1. 3.1 - 8: Not supported
  2. 9 - 15.6: Supported
  3. 16.0: Supported
  4. 16.1 - TP: Supported

Opera

  1. 10 - 26: Not supported
  2. 27 - 90: Supported
  3. 91: Supported

Safari on iOS

  1. 3.2 - 8.4: Not supported
  2. 9 - 15.6: Supported
  3. 16.0: Supported
  4. 16.1: Supported

Opera Mini

  1. all: Support unknown

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 105: Supported

Opera Mobile

  1. 12 - 12.1: Not supported
  2. 64: Supported

Chrome for Android

  1. 105: Supported

Firefox for Android

  1. 104: Supported

UC Browser for Android

  1. 13.4: Support unknown

Samsung Internet

  1. 4 - 17.0: Supported
  2. 18.0: Supported

QQ Browser

  1. 13.1: Support unknown

Baidu Browser

  1. 13.18: Support unknown

KaiOS Browser

  1. 2.5: Support unknown