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SYS_Window.addEventListener() method

新增事件监听

Signature

public addEventListener(type: ESYS_WindowEventType, listener: (ev: any) => any, options?: { capture?: undefined | false | true; once?: undefined | false | true; passive?: undefined | false | true; signal?: undefined | AbortSignal }): ISYS_WindowEventListenerRemovableObject | undefined;

Parameters

Parameter	Type	Description
type	ESYS_WindowEventType	事件类型，当前支持 blur focus
listener	(ev: any) => any	事件监听回调
options	{ capture?: undefined | false | true; once?: undefined | false | true; passive?: undefined | false | true; signal?: undefined | AbortSignal }	(Optional) 可选参数

Returns

ISYS_WindowEventListenerRemovableObject | undefined

事件监听方法，用于移除事件监听，如若为 undefined 则表示创建事件监听失败