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PerformanceNavigationTiming.toJSON

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

The toJSON() method is a serializer - it returns a JSON representation of the PerformanceNavigationTiming object.

Syntax

json = resourcePerfEntry.toJSON();

Arguments

None

Return value

json
A JSON object that is the serialization of the PerformanceNavigationTiming object as a map with entries from the closest inherited interface and with entries for each of the serializable attributes.

Example

// Get a resource performance entry
var perfEntries = performance.getEntriesByType("navigation");
var entry = perfEntries[0];

// Get the JSON and log it
var json = entry.toJSON();
var s = JSON.stringify(json);
console.log("PerformanceNavigationTiming.toJSON() = " + s);

Specifications

Specification Status Comment
Navigation Timing Level 2
The definition of 'toJSON()' in that specification.
Working Draft Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 43 Yes 40 No 30 11
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 43 43 Yes 42 30 11 4.0

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/toJSON