JavaScript 中的窗口 innerWidth 和 innerHeight 属性。

javascriptweb developmentobject oriented programming更新于 2025/8/19 10:52:17

innerWidth 属性返回窗口内容区域的宽度，innerHeight 属性返回窗口内容区域的宽度。

以下是 JavaScript 中窗口 innerWidth 和 innerHeight 属性的代码 −

示例

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
   body {
      font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
   }
   .result{
      font-size: 20px;
      font-weight: 500;
   }
</style>
</head>
<body>
<h1>Window innerWidth and innerHeight Properties</h1>
<div style="color: green;" class="result"></div>
<button class="btn">点击此处</button>
<h3>
Click on the above button get the innerWidth and innerHeight of the window.
</h3>
<script>
   let resEle = document.querySelector(".result");
   document.querySelector(".Btn").addEventListener("click", () => {
      resEle.innerHTML = "Window.innerWidth = "+window.innerWidth + '<br>';
      resEle.innerHTML += "Window.innerHeight = "+window.innerHeight + '<br>';
   });
</script>
</body>
</html>