Metrics 接口
🌐 Metrics interface
语法
🌐 Signature
export interface Metrics
属性
🌐 Properties
|
属性 🌐 Property |
修饰符 🌐 Modifiers |
类型 🌐 Type |
描述 🌐 Description |
默认 🌐 Default |
|---|---|---|---|---|
|
Documents |
|
number |
页面中的文档数量。 🌐 Number of documents in the page. | |
|
Frames |
|
number |
页面中的帧数。 🌐 Number of frames in the page. | |
|
JSEventListeners |
|
number |
页面上的事件数量。 🌐 Number of events in the page. | |
|
JSHeapTotalSize |
|
number |
JavaScript 堆总大小,单位字节。 🌐 Total JavaScript heap size, in bytes. | |
|
JSHeapUsedSize |
|
number |
已使用的 JavaScript 堆大小(字节)。 🌐 Used JavaScript heap size, in bytes. | |
|
LayoutCount |
|
number |
完整或部分页面布局的总数。 🌐 Total number of full or partial page layouts. | |
|
LayoutDuration |
|
number |
所有页面布局的总持续时间,单位为秒。 🌐 Combined duration of all page layouts, in seconds. | |
|
Nodes |
|
number |
页面中的 DOM 节点数量。 🌐 Number of DOM nodes in the page. | |
|
RecalcStyleCount |
|
number |
页面样式重新计算的总次数。 🌐 Total number of page style recalculations. | |
|
RecalcStyleDuration |
|
number |
所有页面样式重新计算的总时长,单位为秒。 🌐 Combined duration of all page style recalculations, in seconds. | |
|
ScriptDuration |
|
number |
JavaScript 执行的总时长,单位是秒。 🌐 Combined duration of JavaScript execution, in seconds. | |
|
TaskDuration |
|
number |
浏览器执行的所有任务的总时长,单位为秒。 🌐 Combined duration of all tasks performed by the browser, in seconds. | |
|
Timestamp |
|
number |
指标样本采集的时间戳,使用单调时间(自某个过去任意时刻起的秒数)。 🌐 The timestamp when the metrics sample was taken, in monotonic time (seconds since an arbitrary point in the past). |