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How do I shuffle an array in Swift?
...0 at the top of the mutating array function, to prevent receiving a "fatal error: Can't form Range with end < start" when it is passed an empty array.
– Carl Smith
Jun 30 '15 at 0:00
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.NET WebAPI Serialization k_BackingField Nastiness
...event the backing field names:
[Serializable]
[DataContract]
public class Error
{
[DataMember]
public string Status { get; set; }
[DataMember]
public string Message { get; set; }
[DataMember]
public string ErrorReferenceCode { get; set; }
[DataMember]
public List<...
Linux/Unix command to determine if process is running?
...nd non-zero if it isn't. The POSIX spec says that ps must exit >0 if an error has occurred but it is unclear to me what constitutes 'an error'. Therefore I'm not personally using that strategy although I'm pretty sure it will work as well on all Unix/Linux platforms.
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Accidentally committed .idea directory files into git
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If you get @annedroiid error of 'did not match any files', you can try and add its path. Like when I was deleting the database.yml file, I simply did 'git rm -r --cached config/database.yml'
– Kaka Ruto
Mar 15...
How to limit the maximum value of a numeric field in a Django model?
...he number entered is outside a given range, the user receives a validation error much as if she had entered character data into a numeric field? I.e. is there some way I can do this that will work regardless of whether the user is editing via the admin or via some other form? I don't want to just li...
Algorithm to detect corners of paper sheet in photo
...m working on the similar project. I run above the code and it gives me the error " No module named cv ". I installed the Open CV 2.4 version and import cv2 is working perfectly for me.
– Navneet Singh
Dec 19 '13 at 17:59
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.NET 4.0 build issues on CI server
...ET 4.0 build server reference assemblies warnings MSB3644
If you get this error: "Microsoft.WebApplication.targets was not found" - just copy the target from dev machine https://stackoverflow.com/a/5344246/423356
if mvc3 is not installed in build server; "add deployable assemblies" to the mvc proj...
Rails auto-assigning id that already exists
...ll primary key); insert into t values (1); insert into t values (default); ERROR: duplicate key value violates unique constraint "t_pkey" DETAIL: Key (id)=(1) already exists.
– Dondi Michael Stroma
Oct 27 '14 at 2:57
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Find running median from a stream of integers
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Count-Min Sketch is better than P^2 in that it also gives error bound while the latter does not.
– sinoTrinity
Feb 25 '15 at 17:29
1
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Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
...n you will not get an exception. It really wouldn't make sense to throw an error just because a value doesn't exist in a dictionary. But if the dictionary didn't exist then that would be a reason to throw an error. (The term dictionary was just used to refer to an arbitrary collection.)
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