This is a new attribute on the Navigator object. It returns the number of tasks that can be run efficiently in parallel on the current system under ideal circumstances.

Demo

Documentation

Specification

Editor's draft

Status in Chromium

Blink


Enabled by default (tracking bug) in:

  • Chrome for desktop release 37
  • Chrome for Android release 37
  • Android WebView release 37

Consensus & Standardization

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

Owner

Last updated on 2020-11-09