JavaScript gets a new numeric primitive that provides support for arbitrary-precision integers. `Number`s in JavaScript are represented as double-precision floats, giving them limited precision. `BigInt`s, on the other hand, can safely store and operate on large integers even beyond the safe integer limit for `Number`s.



Working draft or equivalent

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 67
  • Chrome for Android release 67
  • Android WebView release 67

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.


Search tags

bigint, bignum, arbitrary, precision, integer,

Last updated on 2020-11-09