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How can I get rid of an “unused variable” warning in Xcode?
I understand exactly why unused variable warnings occur. I don't want to suppress them in general, because they are incredibly useful in most cases. However, consider the following (contrived) code.
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Changing specific text's color using NSMutableAttributedString in Swift
The issue I am having is that I want to be able to change the textColor of certain text in a TextView. I am using a concatenated string, and just want the strings I am appending into the TextView's text. It appears that what I want to use is NSMutableAttributedString , but I am not finding any reso...
How to do relative imports in Python?
Imagine this directory structure:
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Use RSA private key to generate public key?
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will actually produce a public - private key pair. The pair is stored in the generated mykey.pem file.
openssl rsa -in mykey.pem -pubout > mykey.pub
will extract the public key and print that out. Here is a link to a page that describes this better.
EDIT: Check the examples section here...
Is there a list of Pytz Timezones?
...ld like to know what are all the possible values for the timezone argument in the Python library pytz. How to do it?
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Is there any performance reason to declare method parameters final in Java?
Is there any performance reason to declare method parameters final in Java?
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How to change a django QueryDict to Python Dict?
Let's pretend I have the following QueryDict:
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Jump into interface implementation in Eclipse IDE
You know how in Eclipse, pressing F3 over a method will take you to its declaration? Well I have a method that is part of an interface; clicking F3 over this naturally takes me to the declaring interface.
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Are there any O(1/n) algorithms?
...s question isn't as stupid as it might seem. At least theoretically, something such as O(1/n) is completely sensible when we take the mathematical definition of the Big O notation:
Now you can easily substitute g(x) for 1/x … it's obvious that the above definition still holds for some f.
For t...
How to determine a user's IP address in node
How can I determine the IP address of a given request from within a controller? For example (in express):
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