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How to normalize a path in PowerShell?
...-) FWIW, even the built-in Test-Path <path> -IsValid fails on paths rooted in drives that don't exist.
– Keith Hill
Feb 13 '11 at 3:42
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How to count items in JSON object using command line?
... Your initial jq code (.[]) return the length of each object in the root array, while I'm looking for the length of the root array itself. Need to fix to .
– Édouard Lopez
Jan 26 '14 at 9:52
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Difference between jQuery parent(), parents() and closest() functions
...
Begins with the parent element
Travels up the DOM tree to the document's root element, adding each
ancestor element to a temporary collection; it then filters that
collection based on a selector if one is supplied
The returned jQuery object contains zero, one, or multiple elements
.parent()
Give...
总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
...int类型在内存中所占字节数）。为了知道static_cast<> 实际如何，我们不得不要来看一下CDerived的内存布局。
CDerived的内存布局（Memory Layout）
如图所示，CDerived的内存布局包括两个对象，CBaseX 和 CBaseY，编译器也知道这一点...
What is the most effective way for float and double comparison?
...vate:
// The data type used to store the actual floating-point number.
union FloatingPointUnion {
RawType value_; // The raw floating-point number.
Bits bits_; // The bits that represent the number.
};
// Converts an integer from the sign-and-magnitude representation to
// t...
Xcode — what is $(SRCROOT)?
... need to update some paths. The library search paths all start with $(SRCROOT) . What does that mean?
3 Answers
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Data binding to SelectedItem in a WPF Treeview
...e namespace declaration):
<TreeView ItemsSource="{Binding Path=Root.Children}" local:TreeViewHelper.SelectedItem="{Binding Path=SelectedItem, Mode=TwoWay}">
</TreeView>
Now you can bind the selected item, and also set it in your view model to change it programmatically, s...
Changing the maximum length of a varchar column?
...
Also it works for MySQL and this question is tagged [TSQL] so it's in the wrong place
– jean
Mar 28 '18 at 10:55
6
...
Insert string at specified position
...er than the putinplace function. I was using the later function to parse a mysql query. Although the output looked alright, the query resulted in a error which took me a while to track down. The following is my version of the stringInsert function requiring only one parameter.
function stringInsert...
驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...要操作。在这样的情况下，
用户和系统管理员经常询问如何控制 OOM Killer的行为。为了方便控制，引入了 /proc/ <pid> /oom_adj旋钮，以防止系统中的重要进程被杀死，并定义要杀死的进程的顺序。oom_adj的可能值范围从 -17 到 +15...