InterventionReportBody.id

The id read-only property of the InterventionReportBody interface returns a string identifying the intervention that generated the report. This can be used to group reports.

A string.

In this example we create a new ReportingObserver to observe intervention reports, then print the value of id to the console.

let options = {
  types: ['intervention'],
  buffered: true
}

let observer = new ReportingObserver(function(reports, observer) {
  let firstReport = reports[0];
  console.log(firstReport.type); // intervention
  console.log(firstReport.body.id);
}, options);