--- sidebar_label: Metrics --- # Metrics interface #### Signature: ```typescript export interface Metrics ``` ## Properties
Property Modifiers Type Description Default
Documents `optional` number
Frames `optional` number
JSEventListeners `optional` number
JSHeapTotalSize `optional` number
JSHeapUsedSize `optional` number
LayoutCount `optional` number
LayoutDuration `optional` number
Nodes `optional` number
RecalcStyleCount `optional` number
RecalcStyleDuration `optional` number
ScriptDuration `optional` number
TaskDuration `optional` number
Timestamp `optional` number