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puppeteer/website/versioned_docs/version-10.0.0/puppeteer.page.metrics.md
TASNEEM KOUSHAR 34ff00e2fe
chore(docs): generate site for v10.0.0 
* fix: added parts of website

* fix: removed unnecessary lines

* fix: updated contributing.md

* fix: added parts of sidebar

* fix: added all APIs

* fix: added version 10.0.0

Co-authored-by: Jack Franklin <jacktfranklin@chromium.org>
2021-08-09 09:57:14 +01:00

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Home > puppeteer > Page > metrics

Page.metrics() method

Signature:

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

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