Document.elementsFromPoint()

elementsFromPoint() 方法可以获取到当前视口内指定坐标处，由里到外排列的所有元素。

语法

var elements = document.elementsFromPoint(x, y);

返回值

一个包含多个元素的数组

参数

x

当前视口内某一点的横坐标

y

当前视口内某一点的纵坐标

示例

HTML

<div>
  <p>Some text</p>
</div>
<p>Elements at point 30, 20:</p>
<div id="output"></div>

JavaScript

var output = document.getElementById("output");
if (document.elementsFromPoint) {
  var elements = document.elementsFromPoint(30, 20);
  for(var i = 0; i < elements.length; i++) {
    output.textContent += elements[i].localName;
    if (i < elements.length - 1) {
      output.textContent += " < ";
    }
  }
} else {
  output.innerHTML = "<span style=\"color: red;\">" +
     "您的浏览器不支持 <code>document.elementsFromPoint()</code>" +
     "</span>";
}

规范

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!