performance.toJSON()

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

Note: This feature is available in Web Workers

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

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
toJSON
56
12
25
9
No
14.1
56
56
25
No
14.5
6.0

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https://developer.mozilla.org/en-US/docs/Web/API/Performance/toJSON