ContextQMD
Back to Content

NotRestoredReasons: toJSON() method

files/en-us/web/api/notrestoredreasons/tojson/index.md

latest1.1 KB
Original Source

{{APIRef("Performance API")}}{{SeeCompatTable}}

The toJSON() method of the {{domxref("NotRestoredReasons")}} interface is a {{Glossary("Serialization","serializer")}}; it returns a JSON representation of the {{domxref("NotRestoredReasons")}} object.

Syntax

js-nolint
toJSON()

Parameters

None.

Return value

A {{jsxref("JSON")}} object that is the serialization of the {{domxref("NotRestoredReasons")}} object.

Examples

The following function will return a JSON representation of the NotRestoredReasons object of the first PerformanceNavigationTiming object currently present in the performance timeline:

js
function returnNRR() {
  const navEntries = performance.getEntriesByType("navigation");
  let navEntry = navEntries[0];
  return navEntry.notRestoredReasons.toJSON();
}

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also