ng.getListeners
检索与 DOM 元素关联的事件监听器的列表。该列表包含宿主监听器，但不包含在 Angular 上下文之外定义的事件监听器（例如，通过 addEventListener ）。
Retrieves a list of event listeners associated with a DOM element. The list does include host listeners, but it does not include event listeners defined outside of the Angular context (e.g. through addEventListener).
ng.getListeners(element: Element): Listener[]
参数
element | Element | 要为其检索 DOM 监听器的元素。 Element for which the DOM listeners should be retrieved. |
返回值
DOM 元素上的事件监听器数组。
Listener[]: Array of event listeners on the DOM element.
使用说明
给定以下 DOM 结构：
Given the following DOM structure:
<my-app>
<div (click)="doSomething()"></div>
</my-app>
在 <div> 上调用 getListeners 将返回一个如下所示的对象：
Calling getListeners on <div> will return an object that looks as follows:
{
name: 'click',
element: <div>,
callback: () => doSomething(),
useCapture: false
}
