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当相关联的文档即将打印或预览以进行打印时，将触发beforeprint事件。
General info
- Specification
- HTML5
- Interface
- Event
- Bubbles
- No
- Cancelable
- No
- Target
- DefaultView (
<window>) - Default Action
- None
Properties
| Property | Type | Description |
|---|---|---|
target 只读 |
EventTarget |
The event target (the topmost target in the DOM tree). |
type 只读 |
DOMString |
The type of event. |
bubbles 只读 |
Boolean |
Whether the event normally bubbles or not. |
cancelable 只读 |
Boolean |
Whether the event is cancellable or not. |