HTML 窗口 self 属性
HTML Window self 属性返回浏览器当前窗口。
语法
以下是语法 −
window.self
下面我们提供一个 HTML Window self 属性的示例 −
示例
<!DOCTYPE html> <html> <style> body { color: #000; height: 100vh; background-color: #8BC6EC; background-image: linear-gradient(135deg, #8BC6EC 0%, #9599E2 100%) no-repeat; text-align: center; } .btn { background: #db133a; border: none; height: 2rem; border-radius: 2px; width: 30%; display: block; color: #fff; outline: none; cursor: pointer; margin: 1rem auto; } .show{ font-size:1.2rem; } </style> <body> <h1>HTML Window self Property Demo</h1> <button onclick="create()" class="btn">Check current window is topmost using self property</button> <div class="show"></div> <script> function create(){ if(window.top === window.self){ document.querySelector('.show').innerHTML='The current window is the topmost window'; } else{ document.querySelector('.show').innerHTML='The current window is not the topmost window'; } } </script> </body> </html>
输出
单击“使用 self 属性检查当前窗口是否是顶层窗口”按钮以检查当前窗口是否为顶层窗口,并了解 self 属性如何工作的 −
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