Can I use
?

getElementsByClassName

- LS

Method of accessing DOM elements by class name

Chrome

  1. ✅ 4 - 131: Supported
  2. ✅ 132: Supported
  3. ✅ 133 - 135: Supported

Edge

  1. ✅ 12 - 131: Supported
  2. ✅ 132: Supported

Safari

  1. ✅ 3.1 - 18.1: Supported
  2. ✅ 18.2: Supported
  3. ✅ 18.3 - TP: Supported

Firefox

  1. ❌ 2: Not supported (but has polyfill available)
  2. ✅ 3 - 133: Supported
  3. ✅ 134: Supported
  4. ✅ 135 - 137: Supported

Opera

  1. ❌ 9: Not supported
  2. ✅ 9.5 - 113: Supported
  3. ✅ 114: Supported

IE

  1. ❌ 5.5: Not supported
  2. ❌ 6 - 8: Not supported (but has polyfill available)
  3. ✅ 9 - 10: Supported
  4. ✅ 11: Supported

Chrome for Android

  1. ✅ 131: Supported

Safari on iOS

  1. ✅ 3.2 - 18.1: Supported
  2. ✅ 18.2: Supported
  3. ✅ 18.3: Supported

Samsung Internet

  1. ✅ 4 - 26: Supported
  2. ✅ 27: Supported

Opera Mini

  1. ✅ all: Supported

Opera Mobile

  1. ✅ 10 - 12.1: Supported
  2. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ✅ 2.1 - 4.4.4: Supported
  2. ✅ 131: Supported

Firefox for Android

  1. ✅ 132: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ✅ 2.5: Supported
  2. ✅ 3: Supported
Resources:
getElementsByClassName on MDN
Test page