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 - 123: Supported
  4. 124: Supported
  5. 125 - 127: Supported

Edge

  1. 12 - 122: Supported
  2. 123: Supported

Safari

  1. 3.1 - 8: Not supported
  2. 9 - 17.3: Supported
  3. 17.4: Supported
  4. 17.5 - TP: Supported

Firefox

  1. 2 - 15: Not supported
  2. 16 - 24: Partial support
  3. 25 - 30: Partial support
  4. 31: Partial support
  5. 32 - 124: Supported
  6. 125: Supported
  7. 126 - 128: Supported

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 20: Partial support
  3. 21 - 108: Supported
  4. 109: Supported

IE

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

Chrome for Android

  1. 123: Supported

Safari on iOS

  1. 3.2 - 8.4: Not supported
  2. 9 - 17.3: Supported
  3. 17.4: Supported
  4. 17.5: Supported

Samsung Internet

  1. 4 - 23: Supported
  2. 24: 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. 123: Supported

Firefox for Android

  1. 124: 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