CustomEvent：detail 属性

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.

备注： 此特性在 Web Worker 中可用。

CustomEvent 接口的 detail 只读属性返回初始化事件时传递的任何数据。

值

事件初始化时使用的数据。

示例

// 创建自定义事件
const catFound = new CustomEvent("animalfound", {
  detail: {
    name: "cat",
  },
});
const dogFound = new CustomEvent("animalfound", {
  detail: {
    name: "dog",
  },
});

const element = document.createElement("div"); // 创建一个 <div> 元素

// 添加适当的事件监听
element.addEventListener("animalfound", (e) => console.log(e.detail.name));

// 派发事件
element.dispatchEvent(catFound);
element.dispatchEvent(dogFound);

// 在控制台中输出“cat”和“dog”

规范

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

浏览器兼容性

BCD tables only load in the browser

参见

CustomEvent