performance.toJSON()

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.

Syntax

myPerf = performance.toJSON()

Arguments

None
 

Return value

myPerf
A JSON object that is the serialization of the Performance object.

Example

var js;
js = window.performance.toJSON();
console.log("json = " + JSON.stringify(js));

Specifications

Specification Status Comment
High Resolution Time Level 2
The definition of 'toJSON() serializer' in that specification.
Recommendation Defines toJson().

Browser compatibility

BCD tables only load in the browser