puppeteer/website/versioned_docs/version-19.3.0/api/puppeteer.page.metrics.md
release-please[bot] c4803e4a37
chore: release main (#9313)
🤖 I have created a release *beep* *boop*
---


<details><summary>ng-schematics: 0.1.0</summary>

## 0.1.0 (2022-11-23)


### Features

* **ng-schematics:** Release @puppeteer/ng-schematics
([#9244](https://github.com/puppeteer/puppeteer/issues/9244))
([be33929](be33929770))
</details>

<details><summary>puppeteer: 19.3.0</summary>

##
[19.3.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-v19.2.2...puppeteer-v19.3.0)
(2022-11-23)


### Miscellaneous Chores

* **puppeteer:** Synchronize puppeteer versions


### Dependencies

* The following workspace dependencies were updated
  * dependencies
    * puppeteer-core bumped from 19.2.2 to 19.3.0
</details>

<details><summary>puppeteer-core: 19.3.0</summary>

##
[19.3.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-core-v19.2.2...puppeteer-core-v19.3.0)
(2022-11-23)


### Features

* **puppeteer-core:** Infer element type from complex selector
([#9253](https://github.com/puppeteer/puppeteer/issues/9253))
([bef1061](bef1061c06))
* **puppeteer-core:** update Chrome launcher flags
([#9239](https://github.com/puppeteer/puppeteer/issues/9239))
([ae87bfc](ae87bfc2b4))


### Bug Fixes

* remove boundary conditions for visibility
([#9249](https://github.com/puppeteer/puppeteer/issues/9249))
([e003513](e003513c0c))
</details>

---
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2022-11-23 14:14:25 +01:00

1.1 KiB

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.