This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The BluetoothRemoteGATTCharacteristic.readValue() method returns a Promise that resolves to a DataView holding a duplicate of the value property if it is available and supported. Otherwise it throws an error.
Syntax
BluetoothRemoteGATTCharacteristic.readValue().then(function(dataView) { ... })
Returns
A Promise that resolves to an DataView.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web Bluetooth The definition of 'readValue()' in that specification. |
Draft | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
readValue | Chrome
Full support
56
| Edge
Full support
≤79
| Firefox No support No | IE No support No | Opera
Full support
43
| Safari No support No | WebView Android No support No | Chrome Android Full support 56 | Firefox Android No support No | Opera Android Full support 43 | Safari iOS No support No | Samsung Internet Android Full support 6.0 |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.