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When should the volatile keyword be used in C#?
... this than Eric Lippert (emphasis in the original):
In C#, "volatile" means not only "make sure that the compiler and the
jitter do not perform any code reordering or register caching
optimizations on this variable". It also means "tell the processors to
do whatever it is they need to do ...
When to use window.opener / window.parent / window.top
...'re not relevant to the referring window's situation. ("Referring window" means the window in whose context the JavaScript code is run.)
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How to check if an object is a certain type
...vant nitpick: Traditionally, the names of parameters are camelCased (which means they always start with a lower-case letter) when writing .NET code (either VB.NET or C#). This makes them easy to distinguish at a glance from classes, types, methods, etc.
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how to ignore namespaces with XPath
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You could use Namespace = false on a XmlTextReader
[TestMethod]
public void MyTestMethod()
{
string _withXmlns = @"<?xml version=""1.0"" encoding=""utf-8""?>
<ParentTag xmlns=""http://anyNamespace.com"">
<Identification value=""ID123456"" />
</ParentTag>
";
var xml...
How to programmatically set the layout_align_parent_right attribute of a Button in Relative Layout?
...lativeLayout.ALIGN_PARENT_RIGHT);
params.addRule(RelativeLayout.LEFT_OF, R.id.id_to_be_left_of);
button.setLayoutParams(params); //causes layout update
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How to apply a function to two columns of Pandas dataframe
Suppose I have a df which has columns of 'ID', 'col_1', 'col_2' . And I define a function :
12 Answers
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Difference between scaling horizontally and vertically for databases [closed]
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Horizontal scaling means that you scale by adding more machines into your pool of resources whereas Vertical scaling means that you scale by adding more power (CPU, RAM) to an existing machine.
An easy way to remember this is to think of a mach...
[精华]VC++对话框程序打印及打印预览的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...用程序文件菜单中会生成两个菜单项分别是打印（标识符ID_FILE_PRINT）和打印预览(标识符：ID_FILE_PRINT_PREVIEW)，展开程序源代码，可以发现，是CVIEW类提供标准打印和打印预览菜单命令的消息处理函数：
设应用程序视图类为CMyView,...
Server polling with AngularJS
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Here is my version using recursive polling. Which means it'll wait for the server response before initiating the next timeout.
Also, when an error occur it'll continue polling but in a more relaxed manor and according to the duration of the error.
Demo is here
Written mor...
Calculating the difference between two Java date instances
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btw -- you mean Comparable.compareTo(), not Comparable.compare().
– Scott Morrison
Dec 13 '10 at 4:33
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