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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 1
The definition of 'toJSON' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support. 43 40 10 32 No support
Feature Android Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support. 4.4 42 ? 10.0 32 No support

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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/PerformanceResourceTiming/toJSON