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The toJSON()
method is a serializer that returns a JSON representation of the PerformanceResourceTiming
object.
Syntax
json = resourcePerfEntry.toJSON();
Arguments
- None
Return value
- json
- A JSON object that is the serialization of the
PerformanceResourceTiming
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("resource"); var entry = perfEntries[0]; // Get the JSON and log it var json = entry.toJSON(); var s = JSON.stringify(json); console.log("PerformanceEntry.toJSON = " + s);
Specifications
Specification | Status | Comment |
---|---|---|
Resource Timing 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. | 43 | 40 | 10 | 32 | No support |
Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support. | 4.4 | 42 | ? | 10.0 | 32 | No support |