javascript closed attribute
Translation results：
英[kləʊzd] 美[kloʊzd]
adj. Closed, closed; airtight, confidential; <US> ready, contracted
v.The past tense and past participle of “close”
javascript closed attributesyntax
Function: Returns a Boolean value that declares whether the window has been closed. This property is read-only. When the browser window is closed, the Windows object representing the window does not disappear, it will continue to exist, but its closed property will be set to true.
Syntax: window.closed
javascript closed attributeexample
<html>
<head>
<script type="text/javascript">
function ifClosed()
{
document.write("窗口已关闭")
}
function ifNotClosed()
{
document.write("窗口没有关闭")
}
function checkWin()
{
if (myWindow.closed)
ifClosed()
else
ifNotClosed()
}
</script>
</head>
<body>
<script type="text/javascript">
myWindow=window.open('','','width=200,height=100')
myWindow.document.write("这是打开的窗口")
</script>
<input type="button" value="窗口是否已经关闭?" onclick="checkWin()">
<p>注释：请开启浏览器的弹窗操作权限</p>
</body>
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