The toJSON() method of the Performance interface is a standard serializer: it returns a JSON representation of the performance object's properties.

Syntax

myPerf = performance.toJSON()

Arguments

None
 

Return value

myPerf
A JSON object that is the serialization of the Performance object.

Example

var js;
js = window.performance.toJSON();
console.log("json = " + JSON.stringify(js));

Specifications

Specification Status Comment
High Resolution Time Level 2
The definition of 'toJSON() serializer' in that specification.
Candidate Recommendation Defines toJson().

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No Yes25 ? No No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No No Yes25 No ? ?

Document Tags and Contributors

Contributors to this page: fscholz, abbycar, jpmedley, rolfedh, AFBarstow
Last updated by: fscholz,