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javascript closed attribute

Chinese translationRecent Updates：2019-02-13 13:39:53

英[kləʊzd] 美[kloʊzd]

adj. Closed, closed; airtight, confidential; <US> ready, contracted

v.The past tense and past participle of “close”

javascript closed attribute Video explanation

javascript closed attribute syntax

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 attribute example

<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>
</html>

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