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How to optimize for-comprehensions and loops in Scala?
...imizer can eliminate the foreach but cannot yet eliminate the throw/catch. And throw/catch is expensive. But since such nested returns are rare in Scala programs, the optimizer did not yet address this case. There is work going on to improve the optimizer which hopefully will solve this issue soon.
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Get Element value with minidom with Python
....nodeValue is gives back "None", just to test I passed it name[0].nodeName and it gave me "name" which is correct. Any ideas?
– RailsSon
Nov 25 '08 at 14:09
28
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Cannot create an NSPersistentStoreCoordinator with a nil model
Been having my first crack at Core Data and I'm getting the following error when running my code on my device, but it works fine on the simulator..
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Cannot delete or update a parent row: a foreign key constraint fails
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In my case: I just ran a large SQL file and one of the final statements failed, so I just wanna delete all tables, fix the syntax error, and rerun, making this exactly what I was looking for.
– ekerner
Nov 5 '14 at 17:18
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Hidden features of Perl?
...ation when looping through the records (usually lines) returned by a file handle, without using a flag variable:
while(<$fh>)
{
next if 1..1; # skip first record
...
}
Run perldoc perlop and search for "flip-flop" for more information and examples.
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How to set IntelliJ IDEA Project SDK
I just installed IntelliJ IDEA and when I try to create my first Project it asks for me to set up the Project SDK. When I click on "JDK" it asks for me to select the home directory of the JDK as shown in this image.
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How to serialize a TimeSpan to XML
I am trying to serialize a .NET TimeSpan object to XML and it is not working. A quick google has suggested that while TimeSpan is serializable, the XmlCustomFormatter does not provide methods to convert TimeSpan objects to and from XML.
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What's the algorithm to calculate aspect ratio?
...8:1.
If so, what you need to do is find the greatest common divisor (GCD) and divide both values by that. The GCD is the highest number that evenly divides both numbers. So the GCD for 6 and 10 is 2, the GCD for 44 and 99 is 11.
For example, a 1024x768 monitor has a GCD of 256. When you divide bot...
Why does C++11 not support designated initializer lists as C99? [closed]
... constructor. This is the sort of abstraction C++ promotes.
On the other hand the designated initializers feature is more about exposing and making members easy to access directly in client code. This leads to things like having a person of age 18 (years?) but with height and weight of zero.
In ...
Implicit “Submit” after hitting Done on the keyboard at the last EditText
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Try this:
In your layout put/edit this:
<EditText
android:id="@+id/search_edit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
android:singleLine="true"
android:imeOptions="actionDone" />
In your act...