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When should I release objects in -(void)viewDidUnload rather than in -dealloc?
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As the documentation says:
It is called during low-memory conditions when the view controller needs to release its view and any objects associated with that view to free up memory.
In the same situation dealloc is not called. ...
Entity Framework: There is already an open DataReader associated with this Command
...hat is the question. Maybe there is more then one command executed but you don't see it. I'm not sure if this can be traced in Profiler (exception can be thrown before second reader is executed). You can also try to cast the query to ObjectQuery and call ToTraceString to see the SQL command. It is h...
What is the difference between declarative and imperative programming? [closed]
...the resources that I have found is daunting - for instance at Wikipedia .
Does anyone have a real-world example that they could show me that might bring some perspective to this subject (perhaps in C#)?
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Order discrete x scale by frequency/value
I am making a dodged bar chart using ggplot with discrete x scale, the x axis are now arranged in alphabetical order, but I need to rearrange it so that it is ordered by the value of the y-axis (i.e., the tallest bar will be positioned on the left).
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How to pull a random record using Django's ORM?
... newest, one that was not visited for most time, most popular one and a random one.
15 Answers
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Chaining multiple MapReduce jobs in Hadoop
... is.
As far as removing intermediate data after a job has finished you can do this in your code. The way i've done it before is using something like:
FileSystem.delete(Path f, boolean recursive);
Where the path is the location on HDFS of the data. You need to make sure that you only delete this dat...
Saving and Reading Bitmaps/Images from Internal memory in Android
What I want to do, is to save an image to the internal memory of the phone (Not The SD Card) .
7 Answers
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How to properly match varargs in Mockito
...it compatible with any var arg types (e.g. String ..., Integer ..., etc.), do an explicit casting. For example, if you have doSomething(Integer number, String ... args) you can do the mock/stub code with something like when(mock).doSomething(eq(1), (String) anyVarargs()). That should take care of th...
Notepad++ show open files on the left
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Settings > Preferences > tab General > Document List Panel > check Show
Credit to anonymous coward
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Send POST data using XMLHttpRequest
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The code below demonstrates on how to do this.
var http = new XMLHttpRequest();
var url = 'get_data.php';
var params = 'orem=ipsum&name=binny';
http.open('POST', url, true);
//Send the proper header information along with the request
http.setRequestHeader('...