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
performance.toJSON()
Syntax
toJSON()
Return value
A JSON object that is the serialization of the Performance object.
Examples
var js; js = window.performance.toJSON(); console.log("json = " + JSON.stringify(js));
Specifications
| Specification |
|---|
| High Resolution Time # dom-performance-tojson |
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
