Object.hasOwn

Category: JavaScript
Type: Chromium catches up
Status: Enabled by default (Chrome 93)
Intent stage: Shipped

Summary

Object.hasOwn provides an easier-to-use, static method version of Object.prototype.hasOwnProperty. For example, Object.hasOwn({ prop:42 }, 'prop') returns true.

Standards & signals

Specification: https://tc39.es/proposal-accessible-object-hasownproperty/
Firefox: In development
Safari: No signal
Web developers: No signals
Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1213927

Explainers: https://v8.dev/features/object-has-own https://github.com/tc39/proposal-accessible-object-hasownproperty

View on chromestatus.com