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puppeteer/website/versioned_docs/version-18.1.0/api/puppeteer.page.metrics.md
release-please[bot] 3aee641c3d
chore(main): release 18.1.0 (#9042) 
🤖 I have created a release *beep* *boop*
---


##
[18.1.0](https://github.com/puppeteer/puppeteer/compare/v18.0.5...v18.1.0)
(2022-10-05)


### Features

* **chromium:** roll to Chromium 107.0.5296.0 (r1045629)
([#9039](https://github.com/puppeteer/puppeteer/issues/9039))
([022fbde](022fbde85e))

---
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[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
2022-10-05 08:27:19 +00:00

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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.