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