HTMLMapElement:areas 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 July 2015.

HTMLMapElement 接口的 areas 只读属性返回关联 <map> 元素的 <area> 元素集合。

一个包含 HTMLAreaElement 元素的 HTMLCollection 对象。

示例

html
<map id="image-map">
  <area shape="circle" coords="50,50,35" alt="左箭头" />
  <area shape="circle" coords="150,50,35" alt="右箭头" />
</map>
<img usemap="#image-map" src="left-right-arrow.png" alt="左右箭头图片" />
<output></output>
js
const mapElement = document.getElementById("image-map");
const outputElement = document.querySelector("output");

for (const area of mapElement.areas) {
  area.addEventListener("click", (event) => {
    outputElement.textContent = `你点击了${area.alt}区域。\n\n`;
  });
}

结果

规范

Specification
HTML
# dom-map-areas-dev

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
areas

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

参见