Sensor: reading event

Secure context

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

See also

• Sensor activate event
• Sensor error event