PerformanceNavigationTiming.toJSON()
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The toJSON()
method is a serializer - it returns a JSON representation of the PerformanceNavigationTiming
object.
Syntax
json = resourcePerfEntry.toJSON();
Arguments
None
Return value
- json
-
A JSON object that is the serialization of the
PerformanceNavigationTiming
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("navigation"); var entry = perfEntries[0]; // Get the JSON and log it var json = entry.toJSON(); var s = JSON.stringify(json); console.log("PerformanceNavigationTiming.toJSON() = " + s);
Specifications
Specification |
---|
Navigation Timing Level 2 (Navigation Timing 2) # dom-performancenavigationtiming-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 |
57 |
16 |
58 |
No |
44 |
No |
57 |
57 |
58 |
43 |
No |
7.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/toJSON