1. KeyboardEvent.charCode

    A legacy `KeyboardEvent` property that gives the Unicode codepoint number of a character key pressed during a `keypress` event.

  2. KeyboardEvent.code

    A `KeyboardEvent` property representing the physical key that was pressed, ignoring the keyboard layout and ignoring whether any modifier keys were active.

  3. KeyboardEvent.which

    A legacy `KeyboardEvent` property that is equivalent to either `KeyboardEvent.keyCode` or `KeyboardEvent.charCode` depending on whether the key is alphanumeric.

  4. unhandledrejection/rejectionhandled events

    The `unhandledrejection` event is fired when a Promise is rejected but there is no rejection handler to deal with the rejection. The `rejectionhandled` event is fired when a Promise is rejected, and after the rejection is handled by the promise's rejection handling code.

  5. audiodecoder api: `dequeue` event

  6. audioencoder api: `dequeue` event

  7. blobevent api: timecode

  8. closeevent api: code

  9. keyboardevent api: charcode

  10. keyboardevent api: code

  11. keyboardevent api: keycode

  12. rtcpeerconnectioniceerrorevent api: errorcode

  13. securitypolicyviolationevent api: statuscode

  14. videodecoder api: `dequeue` event

  15. videoencoder api: `dequeue` event