The window.onfocus event does not stop firing in C开发者_Python百科hrome. It is fine in every other browser. Here is my code:
window.onfocus = function() {
alert('focused');
}
What is the best way to fix this?
That's the expected behavior because what's happening is that the alert makes the window object loose focus, and after closing the alert the focus is returned to the window object, firing the event again.
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是否在对方手机上显示已读，是由用户自行设置的。依次打开iPhone的“设置-信息”，会有一个“发送已读回执”的选项。将其打开，对方就能看到你，是否已经阅读了本条iMessage信息。将其关闭，对方就看不到。
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