How we built it

Symbol.hasInstance (ES6)

Symbol.hasInstance enables customizing the behavior of the 'instanceof' operator.

Specification

Established standard

Status in Chromium

Behind a flag (launch bug) in:

  • Chrome for desktop release 50
  • Opera release 37
  • Opera for Android release 37

Consensus & Standardization

  • No public signals
  • No public signals
  • In development
  • No signals

Owner

Last updated on 2016-03-11