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Group by in LINQ
Let's suppose if we have a class like:
10 Answers
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Collapse sequences of white space into a single character and trim string
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Georg SchöllyGeorg Schölly
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How can I format a nullable DateTime with ToString()?
..."yyyy-MM-dd hh:mm:ss") : "n/a");
EDIT: As stated in other comments, check that there is a non-null value.
Update: as recommended in the comments, extension method:
public static string ToString(this DateTime? dt, string format)
=> dt == null ? "n/a" : ((DateTime)dt).ToString(format);
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Is it safe to use -1 to set all bits to true?
... since it is the most straight forward one. Initialize to -1 which will work always, independent of the actual sign representation, while ~ will sometimes have surprising behavior because you will have to have the right operand type. Only then you will get the most high value of an unsigned type.
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Generic htaccess redirect www to non-www
I would like to redirect www.example.com to example.com . The following htaccess code makes this happen:
24 Answers
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Viewing contents of a .jar file
...t way to view classes, methods, properties, etc. inside a jar file?
I'm looking for something equivalent to the very useful Lutz Roeder .NET Reflector - for Java
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WebClient vs. HttpWebRequest/HttpWebResponse
...Using HttpWebRequest gives you more control on the request. You can set cookies, headers, protocol, etc... In the response, you can also retrieve the cookies and headers
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android layout: This tag and its children can be replaced by one and a compound drawable
...answered Jan 13 '12 at 22:43
NPikeNPike
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[ :Unexpected operator in shell programming [duplicate]
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There is no mistake in your bash script. But you are executing it with sh which has a less extensive syntax ;)
So, run bash ./choose.sh instead :)
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Get image data url in JavaScript?
...HTML page with some images (just regular <img /> HTML tags). I'd like to get their content, base64 encoded preferably, without the need to redownload the image (ie. it's already loaded by the browser, so now I want the content).
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