nodeEventTarget.eventNames()

• 返回：<string[]>

  ¥Returns: <string[]>

Node.js 特定于 EventTarget 类的扩展，它返回事件 type 名称的数组，事件监听器注册了这些名称。

¥Node.js-specific extension to the EventTarget class that returns an array of event type names for which event listeners are registered.