According to the spec: Those getters' argument should not be optional. An 'index' or 'name' must be specified in order to get the item wanted in the array.


Specification link

Specification being incubated in a Community Group

Status in Chromium


In development (tracking bug)

Consensus & Standardization

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

  • Shipped/Shipping
  • No signal
  • No signals


Last updated on 2022-01-21