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InterventionReportBody: lineNumber property

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

The lineNumber read-only property of the InterventionReportBody interface returns the line in the source file in which the intervention occurred.

Note: This property is most useful alongside InterventionReportBody.sourceFile as it enables the location of the line in that file where the feature is used.

Value

An integer, or null if the line is not known.

Examples

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

js

const options = {
  types: ["intervention"],
  buffered: true,
};

const observer = new ReportingObserver((reports, observer) => {
  const firstReport = reports[0];
  console.log(firstReport.type); // intervention
  console.log(firstReport.body.sourceFile); // the source file
  console.log(firstReport.body.lineNumber); // the line in that file
}, options);

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
lineNumber 69 79 No No 56 No 69 69 No 48 No 10.0

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https://developer.mozilla.org/en-US/docs/Web/API/InterventionReportBody/lineNumber