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puppeteer/website/versioned_docs/version-19.4.0/api/puppeteer.page.metrics.md
release-please[bot] 931d4fced5
chore: release main (#9322) 
🤖 I have created a release *beep* *boop*
---


<details><summary>puppeteer: 19.4.0</summary>

##
[19.4.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-v19.3.0...puppeteer-v19.4.0)
(2022-12-07)


### Features

* **chromium:** roll to Chromium 109.0.5412.0 (r1069273)
([#9364](https://github.com/puppeteer/puppeteer/issues/9364))
([1875da6](1875da6191)),
closes [#9233](https://github.com/puppeteer/puppeteer/issues/9233)


### Dependencies

* The following workspace dependencies were updated
  * dependencies
    * puppeteer-core bumped from 19.3.0 to 19.4.0
</details>

<details><summary>puppeteer-core: 19.4.0</summary>

##
[19.4.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-core-v19.3.0...puppeteer-core-v19.4.0)
(2022-12-07)


### Features

* ability to send headers via ws connection to browser in node.js
environment
([#9314](https://github.com/puppeteer/puppeteer/issues/9314))
([937fffa](937fffaedc)),
closes [#7218](https://github.com/puppeteer/puppeteer/issues/7218)
* **chromium:** roll to Chromium 109.0.5412.0 (r1069273)
([#9364](https://github.com/puppeteer/puppeteer/issues/9364))
([1875da6](1875da6191)),
closes [#9233](https://github.com/puppeteer/puppeteer/issues/9233)
* **puppeteer-core:** keydown supports commands
([#9357](https://github.com/puppeteer/puppeteer/issues/9357))
([b7ebc5d](b7ebc5d9bb))


### Bug Fixes

* **puppeteer-core:** avoid type instantiation errors
([#9370](https://github.com/puppeteer/puppeteer/issues/9370))
([17f31a9](17f31a9ee4)),
closes [#9369](https://github.com/puppeteer/puppeteer/issues/9369)
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
2022-12-07 19:35:29 +01:00

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sidebar_label
Page.metrics

Page.metrics() method

Signature:

class Page {
  metrics(): Promise<Metrics>;
}

Returns:

Promise<Metrics>

Object containing metrics as key/value pairs.

  • Timestamp : The timestamp when the metrics sample was taken.

  • Documents : Number of documents in the page.

  • Frames : Number of frames in the page.

  • JSEventListeners : Number of events in the page.

  • Nodes : Number of DOM nodes in the page.

  • LayoutCount : Total number of full or partial page layout.

  • RecalcStyleCount : Total number of page style recalculations.

  • LayoutDuration : Combined durations of all page layouts.

  • RecalcStyleDuration : Combined duration of all page style recalculations.

  • ScriptDuration : Combined duration of JavaScript execution.

  • TaskDuration : Combined duration of all tasks performed by the browser.

  • JSHeapUsedSize : Used JavaScript heap size.

  • JSHeapTotalSize : Total JavaScript heap size.

Remarks

All timestamps are in monotonic time: monotonically increasing time in seconds since an arbitrary point in the past.