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What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]
...'s not the only ternary operator, just the most common one.
Here's a good em>x m>ample from Wikipedia demonstrating how it works:
A traditional if-else construct in C, Java and JavaScript is written:
if (a > b) {
result = m>x m>;
} else {
result = y;
}
This can be rewritten as the following state...
Pandas - Get first row value of a given column
... a ridiculously easy question... but I'm not seeing the easy answer I was em>x m>pecting.
7 Answers
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Which icon sizes should my Windows application's icon include?
I have a Windows application which will run in Windows m>X m>P and newer (i.e. Vista/7). According to the Vista UI Guidelines , the standard sizes are 16m>x m>16, 32m>x m>32, 48m>x m>48, 256m>x m>256 (m>X m>P standard sizes do not include the 256m>x m>256 icon). In addition to those sizes, I also have 96m>x m>96 and 128m>x m>128 (and could cr...
How to Sort a List by a property in the object
...e Sort method, passing a Comparison<T> delegate:
objListOrder.Sort((m>x m>, y) => m>x m>.OrderDate.CompareTo(y.OrderDate));
If you prefer to create a new, sorted sequence rather than sort in-place then you can use LINQ's OrderBy method, as mentioned in the other answers.
...
Select by partial string from a pandas DataFrame
...
Since str.* methods treat the input pattern as a regular em>x m>pression, you can use df[df['A'].str.contains("Hello|Britain")]
– Garrett
Jun 27 '13 at 19:20
7
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Can you em>x m>plain the HttpURLConnection connection process?
...t URL of the resource to
// request
URL url = new URL("http://www.em>x m>ample.com/comment");
// instantiate the HttpURLConnection with the URL object - A new
// connection is opened every time by calling the openConnection
// method of the protocol handler for this URL.
// 1. Th...
Deep null checking, is there a better way?
...of the language.
Update (2014):
The ?. operator is now planned for the nem>x m>t Roslyn compiler release. Note that there is still some debate over the em>x m>act syntactic and semantic analysis of the operator.
Update (July 2015): Visual Studio 2015 has been released and ships with a C# compiler that supp...
Are members of a C++ struct initialized to 0 by default?
...arent p = {}; // value initializes all members
The second will make p.s.{m>x m>,y} zero. You cannot use these aggregate initializer lists if you've got constructors in your struct. If that is the case, you will have to add proper initalization to those constructors
struct Snapshot {
int m>x m>;
dou...
fatal: early EOF fatal: indem>x m>-pack failed
...
1
2
Nem>x m>t
535
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How to use Boost in Visual Studio 2010
What is a good step by step em>x m>planation on how to use the Boost library in an empty project in Visual Studio?
13 Answers
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