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Assigning default values to shell variables with a single command in bash
... of tests on variables in a bash (3.00) shell script where if the variable is not set, then it assigns a default, e.g.:
9 A...
Getting the HTTP Referrer in ASP.NET
...er's HTTP Referrer in ASP.Net ( C# ). I know the HTTP Referrer itself is unreliable, but I do want a reliable way of getting the referrer if it is present.
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Replacement for “rename” in dplyr
... rename . I have recently started using dplyr, and was wondering if there is an easy way to rename variables using a function from dplyr, that is as easy to use as to plyr's rename ?
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Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i
....1, I can no longer build my project for the 64-bit simulator, receiving this error:
18 Answers
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X-Frame-Options Allow-From multiple domains
I have an ASP.NET 4.0 IIS7.5 site which I need secured using the X-Frame-Options header.
11 Answers
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How do I stop Entity Framework from trying to save/insert child objects?
...urally assumed it would only try to save the specified entity. However, it is also trying to save that entity's child entities. This is causing all sorts of integrity problems. How do I force EF to only save the entity I want to save and therefore ignore all child objects?
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The key must be an application-specific resource id
Why do I get this Exception?
10 Answers
10
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What is a method that can be used to increment letters?
....charCodeAt(0) + 1);
}
nextChar('a');
As others have noted, the drawback is it may not handle cases like the letter 'z' as expected. But it depends on what you want out of it. The solution above will return '{' for the character after 'z', and this is the character after 'z' in ASCII, so it could ...
Send data from activity to fragment in Android
I have two classes. First is activity, second is a fragment where I have some EditText . In activity I have a subclass with async-task and in method doInBackground I get some result, which I save to variable. How can I send this variable from subclass "my activity" to this fragment?
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Extract first item of each sublist
I am wondering what is the best way to extract the first item of each sublist in a list of lists and append it to a new list. So if I have:
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