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

toJSON()

Parameters

None.

Return value

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

Examples

const js = window.performance.toJSON();
console.log(`json = ${JSON.stringify(js)}`);

Specifications

Specification
High Resolution Time # dom-performance-tojson

Browser compatibility

BCD tables only load in the browser