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 | Status | Comment |
---|---|---|
Navigation Timing Level 2 The definition of 'toJSON()' in that specification. |
Editor's Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support. | No support | 58 (58) | No support | No support | No support |
Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support. | No support | 58.0 (58) | No support | No support | No support |