大约有 40,000 项符合查询结果（耗时：0.0886秒） [XML]
socket.io and session?
... answered Jan 21 '11 at 3:18
pr0zacpr0zac
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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...工作，因此不会阻塞主 UI 线程。这对于在可能需要超过 100 毫秒左右的操作期间获得良好的用户体验非常重要。阻塞主 UI 线程将使您的应用程序看起来“冻结”并变得无响应，用户不喜欢这样。
当您需要执行需要一段时间的数...
How does the SQL injection from the “Bobby Tables” XKCD comic work?
...en the SQL query they inject results in valid SQL.
Edited again as per dan04's astute comment
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How to execute a JavaScript function when I have its name as a string
...es = functionName.split(".");
var func = namespaces.pop();
for(var i = 0; i < namespaces.length; i++) {
context = context[namespaces[i]];
}
return context[func].apply(context, args);
}
You would call it like so:
executeFunctionByName("My.Namespace.functionName", window, arguments);...
How can I determine if a variable is 'undefined' or 'null'?
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30 Answers
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How to get disk capacity and free space of remote computer
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140
$disk = Get-WmiObject Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
S...
How to generate a simple popup using jQuery
... like:
a.selected {
background-color:#1F75CC;
color:white;
z-index:100;
}
.messagepop {
background-color:#FFFFFF;
border:1px solid #999999;
cursor:default;
display:none;
margin-top: 15px;
position:absolute;
text-align:left;
width:394px;
z-index:50;
padding: 25px 25px 20px...
Why em instead of px?
...for a particular pixel size, then specify it in pixels. Ie, if you want 990px, then put 990px. If pixels is what you want, why not use them?
– thomasrutter
Jul 29 '09 at 6:09
7
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“var” or no “var” in JavaScript's “for-in” loop?
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104
Use var, it reduces the scope of the variable otherwise the variable looks up to the nearest cl...