Profiler: stop() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The stop() method of the Profiler interface stops the profiler and returns a Promise which resolves to the profile itself.

Syntax

js
stop()

Parameters

None.

Return value

A Promise that resolves to an object containing the profile data. The format and interpretation of this object is described in Profile anatomy and format.

Examples

Recording a profile

The following code profiles the doWork() operation, and logs the result.

js
const profiler = new Profiler({ sampleInterval: 10, maxBufferSize: 10000 });

doWork();

const profile = await profiler.stop();
console.log(JSON.stringify(profile));

Specifications

Specification
JS Self-Profiling API
# dom-profiler-stop

Browser compatibility

BCD tables only load in the browser