BluetoothRemoteGATTDescriptor
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The BluetoothRemoteGATTDescriptor
interface of the Web Bluetooth API provides a GATT Descriptor,
which provides further information about a characteristic's value.
Instance properties
BluetoothRemoteGATTDescriptor.characteristic
Read only Experimental-
Returns the
BluetoothRemoteGATTCharacteristic
this descriptor belongs to. BluetoothRemoteGATTDescriptor.uuid
Read only Experimental-
Returns the UUID of the characteristic descriptor, for example
"00002902-0000-1000-8000-00805f9b34fb"
for the Client Characteristic Configuration descriptor. BluetoothRemoteGATTDescriptor.value
Read only Experimental-
Returns the currently cached descriptor value. This value gets updated when the value of the descriptor is read.
Instance methods
BluetoothRemoteGATTDescriptor.readValue()
Experimental-
Returns a
Promise
that resolves to anArrayBuffer
holding a duplicate of thevalue
property if it is available and supported. Otherwise it throws an error. BluetoothRemoteGATTDescriptor.writeValue()
Experimental-
Sets the value property to the bytes contained in an
ArrayBuffer
and returns aPromise
.
Specifications
Specification |
---|
Web Bluetooth # bluetoothgattdescriptor-interface |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
BluetoothRemoteGATTDescriptor | ||||||||||||
characteristic | ||||||||||||
readValue | ||||||||||||
uuid | ||||||||||||
value | ||||||||||||
writeValue |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Partial support
- Partial support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- Has more compatibility info.