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. |
Working Draft | Initial definition. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
toJSON | Chrome Full support 43 | Edge Full support ≤18 | Firefox Full support 40 | IE No support No | Opera Full support 30 | Safari Full support 11 | WebView Android Full support 43 | Chrome Android Full support 43 | Firefox Android Full support 42 | Opera Android Full support 30 | Safari iOS Full support 11 | Samsung Internet Android Full support 4.0 |
Legend
- Full support
- Full support
- No support
- No support