要刷新页面时如何向客户端发送警报消息？
[英]how alert message to client when the page want refresh?
问题描述
Hi to all I'm beginner in java script I need to make some alert and shown that when the page want refresh and done some work like counter=0 or delete a file how can I do this by jquery and java script?
大家好，我是Java脚本的初学者，我需要发出一些警报，并表明当页面需要刷新并完成一些工作（如counter = 0）或删除文件时，如何通过jquery和Java脚本执行此操作？ thank!
2 个解决方案
解决方案1
0 2013-09-28 13:39:09
Before page load/refresh: 在页面加载/刷新之前：
<head>
alert("hello");
</head>
Within body: 体内：
<script>
$count= 0;
while ($count < 10 ) {
$count++;
}
alert("counter increased: " + $count + " times");
</script>
解决方案2
0 已采纳 2013-09-28 13:45:23
You can bind refresh event: 您可以绑定刷新事件：
window.onbeforeunload = function () {
return 'Post job process not completed yet.';
}
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