Can I use
?

JavaScript classes: `static` keyword: Static initialization blocks

IE

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

Edge

  1. ❌ 12 - 93: Not supported
  2. ✅ 94 - 141: Supported
  3. ✅ 142: Supported

Firefox

  1. ❌ 2 - 92: Not supported
  2. ✅ 93 - 143: Supported
  3. ✅ 144: Supported
  4. ✅ 145 - 147: Supported

Chrome

  1. ❌ 4 - 93: Not supported
  2. ✅ 94 - 141: Supported
  3. ✅ 142: Supported
  4. ✅ 143 - 145: Supported

Safari

  1. ❌ 3.1 - 16.3: Not supported
  2. ✅ 16.4 - 18.6: Supported
  3. ✅ 26.0: Supported
  4. ✅ 26.1 - TP: Supported

Opera

  1. ❌ 10 - 79: Not supported
  2. ✅ 80 - 121: Supported
  3. ✅ 122: Supported

Safari on iOS

  1. ❌ 3.2 - 16.3: Not supported
  2. ✅ 16.4 - 18.6: Supported
  3. ✅ 26.0: Supported
  4. ✅ 26.1: Supported

Opera Mini

  1. ﹖ all: Support unknown

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ✅ 142: Supported

Opera Mobile

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

Chrome for Android

  1. ✅ 142: Supported

Firefox for Android

  1. ✅ 144: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Samsung Internet

  1. ❌ 4 - 16.0: Not supported
  2. ✅ 17.0 - 27: Supported
  3. ✅ 28: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ﹖ 13.52: Support unknown

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ❌ 3: Not supported