String.prototype.padStart(), String.prototype.padEnd()

- OTHER

The padStart() and padEnd() methods pad the current string with a given string (eventually repeated) so that the resulting string reaches a given length. The pad is applied from the start (left) of the current string for padStart(), and applied from the end (right) of the current string for padEnd().

Chrome

  1. 4 - 56: Not supported
  2. 57 - 108: Supported
  3. 109: Supported
  4. 110 - 112: Supported

Edge

  1. 12 - 14: Not supported
  2. 15 - 108: Supported
  3. 109: Supported

Safari

  1. 3.1 - 9.1: Not supported
  2. 10 - 16.2: Supported
  3. 16.3: Supported
  4. TP: Supported

Firefox

  1. 2 - 47: Not supported
  2. 48 - 108: Supported
  3. 109: Supported
  4. 110 - 111: Supported

Opera

  1. 9 - 43: Not supported
  2. 44 - 91: Supported
  3. 92: Supported

IE

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

Chrome for Android

  1. 109: Supported

Safari on iOS

  1. 3.2 - 9.3: Not supported
  2. 10 - 16.2: Supported
  3. 16.3: Supported

Samsung Internet

  1. 4 - 6.4: Not supported
  2. 7.2 - 18.0: Supported
  3. 19.0: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 72: Supported

UC Browser for Android

  1. 13.4: Supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 109: Supported

Firefox for Android

  1. 107: Supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Supported
Resources:
MDN Web Docs - padEnd()
MDN Web Docs - padStart()
Polyfill for this feature is available in the core-js library