value
The value
attribute MUST return the last value it was set to. The value is updated by the monitor the list of available presentation displays algorithm.
The onchange
attribute is an event handler whose corresponding event handler event type is change
.
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/presentationavailability/value