CustomEvent.detail

接口 CustomEvent 的只读属性 detail （详情）返回在初始化事件对象时传递过来的任何类型数据。

备注： 此特性在 Web Worker 中可用

Syntax

 let myDetail = customEventInstance.detail;

Return value

事件对象初始化时传递的任何类型数据。

Example

// add an appropriate event listener
obj.addEventListener("cat", function(e) { process(e.detail) });

// create and dispatch the event
let event = new CustomEvent("cat", {
  detail: {
    hazcheeseburger: true
  }
});
obj.dispatchEvent(event);

// Will return an object contaning the hazcheeseburger property
let myDetail = event.detail;

Specifications

Specification
DOM Standard
# ref-for-dom-customevent-detail②

Browser compatibility

BCD tables only load in the browser

See also