getAvailability() returns a promise that resolves with true if the user agent is running on a system that has a Bluetooth radio and false otherwise. The powered state of the Bluetooth radio does not influence the availability because applications can prompt users to turn on the radio using requestDevice(). The availabilitychanged event can be used to detect changes in the availability of the Bluetooth radio.
Motivation
This API is useful for developers to know whether they should show UI for Web Bluetooth or not to the user.
Demos
Documentation
Specification
Status in Chromium
Enabled by default (tracking bug) in:
- Chrome for desktop release 78
- Chrome for Android release 78
Consensus & Standardization
After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.
Owner
Search tags
WebBluetooth getAvailability,Last updated on 2020-12-21
Comments
Intent to Implement and Ship: https://groups.google.com/a/chromium.org/forum/?utm_medium=email&utm_source=footer#!msg/blink-dev/093IZbeZ6RA/nyWAWIOICwAJ