PressureObserver: disconnect() method

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The disconnect() method of the PressureObserver interface stops the pressure observer callback from receiving pressure records from all sources.

Syntax

js
disconnect()

Parameters

None.

Return value

None (undefined).

Examples

Stopping a pressure observer

The following example collects 20 samples and then disconnects the pressure observer to disable receiving any more pressure records.

js
const samples = [];

function pressureChange(records, observer) {
  for (const record of records) {
    samples.push(record.state);
    // We only want 20 samples
    if (samples.length === 20) {
      observer.disconnect();
      return;
    }
  }
}

try {
  const observer = new PressureObserver(callback);
  await observer.observe("cpu", {
    sampleInterval: 1000, // 1000ms
  });
} catch (error) {
  // report error setting up the observer
}

Specifications

Specification
Compute Pressure Level 1
# dom-pressureobserver-disconnect

Browser compatibility

BCD tables only load in the browser