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Sensor: reading event

The reading event is fired when a new reading is available on a sensor.

The Sensor interface is a base class, onreading and the reading event may only be used on one of the derived classes.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener('reading', event => { })

onreading = event => { }

Event type

A generic Event with no added properties.

Examples

Reading acceleration

This example adds an event listener to read acceleration values of an Accelerometer. It reads sixty times a second.

const acl = new Accelerometer({frequency: 60});
acl.addEventListener('reading', () => {
  console.log("Acceleration along the X-axis " + acl.x);
  console.log("Acceleration along the Y-axis " + acl.y);
  console.log("Acceleration along the Z-axis " + acl.z);
});
acl.start();

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
reading_event
67
79
No
No
54
No
67
67
No
48
No
9.0

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Sensor/reading_event