Web/API/PerformanceResourceTiming/toJSON

The toJSON() method is a serializer that returns a JSON representation of the PerformanceResourceTiming object.

Syntax

json = resourcePerfEntry.toJSON();

Arguments

None

Return value

json

A JSON object that is the serialization of the PerformanceResourceTiming 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("resource");
var entry = perfEntries[0];

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

Specifications

Specification	Status	Comment
Resource Timing Level 2The definition of 'toJSON' in that specification.	Working Draft

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
toJSON	Chrome Full support 43	Edge Full support ≤18	Firefox Full support 40	IE No support No	Opera Full support 30	Safari Full support 11	WebView Android Full support 43	Chrome Android Full support 43	Firefox Android Full support 42	Opera Android Full support 30	Safari iOS Full support 11	Samsung Internet Android Full support 4.0

Legend

Full support  

Full support

No support  

No support

PerformanceResourceTiming.toJSON() by Mozilla Contributors is licensed under CC-BY-SA 2.5.