Can I use
?

ES6 Number

- OTHER

Extensions to the Number built-in object in ES6, including constant properties EPSILON, MIN_SAFE_INTEGER, and MAX_SAFE_INTEGER, and methods isFinite, isInteger, isSafeInteger, and isNaN.

Chrome

  1. ❌ 4 - 18: Not supported
  2. ◐ 19 - 33: Partial support
  3. ✅ 34 - 132: Supported
  4. ✅ 133: Supported
  5. ✅ 134 - 136: Supported

Edge

  1. ✅ 12 - 132: Supported
  2. ✅ 133: Supported

Safari

  1. ❌ 3.1 - 8: Not supported
  2. ✅ 9 - 18.2: Supported
  3. ✅ 18.3: Supported
  4. ✅ 18.4 - TP: Supported

Firefox

  1. ❌ 2 - 15: Not supported
  2. ◐ 16 - 24: Partial support
  3. ◐ 25 - 30: Partial support
  4. ◐ 31: Partial support
  5. ✅ 32 - 134: Supported
  6. ✅ 135: Supported
  7. ✅ 136 - 138: Supported

Opera

  1. ❌ 9 - 12.1: Not supported
  2. ◐ 15 - 20: Partial support
  3. ✅ 21 - 113: Supported
  4. ✅ 114: Supported

IE

  1. ❌ 5.5 - 10: Not supported
  2. ❌ 11: Not supported

Chrome for Android

  1. ✅ 133: Supported

Safari on iOS

  1. ❌ 3.2 - 8.4: Not supported
  2. ✅ 9 - 18.2: Supported
  3. ✅ 18.3: Supported
  4. ✅ 18.4: Supported

Samsung Internet

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

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 12.1: Not supported
  2. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ❌ 2.1 - 4: Not supported
  2. ◐ 4.1 - 4.4.4: Partial support
  3. ✅ 133: Supported

Firefox for Android

  1. ✅ 135: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ✅ 2.5: Supported
  2. ✅ 3: Supported
Resources:
New number and Math features in ES6
Polyfill for those features is available in the core-js library