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Are nested try/except blocks in python a good programming practice?
...or:
raise AttributeError("The object doesn't have such attribute") from None
PS. has_key() has been deprecated for a long time in Python 2. Use item in self.dict instead.
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Override devise registrations controller
...hem first and devise will check your views folder before loading the views from the gem. In Rails 3 it's: rails generate devise:views and in Rails 2 (i think) it's: script/generate devise:views
– theTRON
Nov 11 '10 at 22:19
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Creating an array of objects in Java
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I had this confusion too, since I am from C++ background I always assumed that like in C++ Java's new keyword also calls the constructor and allocates the I memory. I guess in Java new only creates the references not the actual object as compared to C++. Thanks ...
What is the difference between mocking and spying when using Mockito?
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From the doc: "spies should be used carefully and occasionally, for example when dealing with legacy code." The unit testing space suffers from too many ways of doing the same thing.
– gdbj
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Feedback on using Google App Engine? [closed]
...e process of updating two different groups a nightmare e.g. transfer money from user1 to user2 in transaction is impossible unless they are in same entity group, but making them same entity group may not be best for frequent update purposes....
read this http://blog.notdot.net/2009/9/Distributed-Tra...
What does “not run” mean in R help pages?
...on an R help page the phrase "not run" appears in comments. Check out this from the help page for "with()":
5 Answers
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@selector() in Swift?
...ing Swift 3 / Xcode 8 and Swift 4 / Xcode 9):
You can construct a Selector from a Swift function type using the #selector expression.
let timer = Timer(timeInterval: 1, target: object,
selector: #selector(MyClass.test),
userInfo: nil, repeats: false)
button.addTar...
Load RSA public key from file
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Below is the relevant information from the link which Zaki provided.
Generate a 2048-bit RSA private key
$ openssl genrsa -out private_key.pem 2048
Convert private Key to PKCS#8 format (so Java can read it)
$ openssl pkcs8 -topk8 -inform ...
JavaScript module pattern with example [closed]
...e for the code above.
The objective is to hide the variable accessibility from the outside world.
Hope this helps. Good Luck.
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How do I use NSTimer?
...ating and Scheduling a Timer", "Stopping a Timer" and "Memory Management". From the article, creating a scheduled, non-repeating timer can be done something like this:
[NSTimer scheduledTimerWithTimeInterval:2.0
target:self
selector:@selector(targetMethod:)
userInfo:nil
repeats:NO];...