y 只读特性在 LinearAccelerationSensor interface returns a double precision integer containing the acceleration of the device along the device's y 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.

句法

var yAcceleration = accelerometer.y
					

A Number .

范例

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();
					

规范

规范 状态 注释
Generic Sensor API 候选推荐 Defines sensors in general.
Accelerometer
The definition of 'y' in that specification.
候选推荐

浏览器兼容性

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元数据

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