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What is the purpose of a question mark after a type (for example: int? myVariable)?
Typically the main use of the question mark is for the conditional, x ? "yes" : "no" .
8 Answers
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Have the same README both in Markdown and reStructuredText
I have a project hosted on GitHub. For this I have written my README using the Markdown syntax in order to have it nicely formatted on GitHub.
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How to use a switch case 'or' in PHP
Is there a way of using an 'OR' operator or equivalent in a PHP switch?
10 Answers
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Concatenate text files with Windows command line, dropping leading lines
I need to concatenate some relatively large text files, and would prefer to do this via the command line. Unfortunately I only have Windows, and cannot install new software.
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Remove duplicate values from JS array [duplicate]
I have a very simple JavaScript array that may or may not contain duplicates.
54 Answers
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Is it good practice to use the xor operator for boolean checks? [closed]
I personally like the exclusive or , ^ , operator when it makes sense in the context of boolean checks because of its conciseness. I much prefer to write
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ImportError: No module named Crypto.Cipher
When I try to run app.py (Python 3.3, PyCrypto 2.6) my virtualenv keeps returning the error listed above. My import statement is just from Crypto.Cipher import AES . I looked for duplicates and you might say that there are some, but I tried the solutions (although most are not even solutions) and n...
Using OpenSSL what does “unable to write 'random state'” mean?
I'm generating a self-signed SSL certificate to protect my server's admin section, and I keep getting this message from OpenSSL:
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What is referential transparency?
What does the term referential transparency mean? I've heard it described as "it means you can replace equals with equals" but this seems like an inadequate explanation.
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Concatenating two std::vectors
How do I concatenate two std::vector s?
25 Answers
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