The x
read-only property of the LinearAccelerationSensor
interface returns a double precision integer containing the linear acceleration of the device along the device's x axis.
If a feature policy blocks use of a feature it is because your code is inconsistent with the policies set on your server. This is not something that would ever be shown to a user. See Feature-Policy
for implementation instructions.
Syntax
var xLinearAccelerationSensor = linearAccelerationSensor.x
Value
A Number
.
Example
Linear acceleration is typically read in the Sensor.onreading
event callback. In the example below this occurs sixty times a second.
let laSensor = new LinearAccelerationSensor({frequency: 60}); laSensor.addEventListener('reading', e => { console.log("Linear acceleration along the X-axis " + laSensor.x); console.log("Linear acceleration along the Y-axis " + laSensor.y); console.log("Linear acceleration along the Z-axis " + laSensor.z); }); laSensor.start();
Specifications
Specification | Status | Comment |
---|---|---|
Generic Sensor API | Candidate Recommendation | Defines sensors in general. |
Accelerometer The definition of 'x' in that specification. |
Candidate Recommendation |
Browser compatibility
The compatibility table in 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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
x | Chrome Full support 69 | Edge Full support ≤79 | Firefox ? | IE ? | Opera Full support 56 | Safari ? | WebView Android Full support 69 | Chrome Android Full support 69 | Firefox Android ? | Opera Android Full support 48 | Safari iOS ? | Samsung Internet Android Full support 10.0 |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown