The hasReading read-only property of the Sensor interface returns a Boolean indicating whether the sensor has a reading.


var boolean = sensorInstance.hasReading

Because Sensor is a base class, hasReading may only be read from one of its derived classes.


A Boolean.


Specification Status Comment
Generic Sensor API
The definition of 'hasReading' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

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ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
hasReadingChrome Full support 69Edge ? Firefox ? IE ? Opera Full support 56Safari ? WebView Android Full support 69Chrome Android Full support 69Firefox Android ? Opera Android Full support 48Safari iOS ? Samsung Internet Android Full support Yes


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Full support
Compatibility unknown  
Compatibility unknown

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