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Properly escape a double quote in CSV
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RFC-4180, paragraph "If double-quotes are used to enclose fields, then a double-quote appearing inside a field must be escaped by preceding it with another double quote."
– tommed
Feb 18 '15 at 16:35
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How can I limit a “Run Script” build phase to my release configuration?
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if [ "${CONFIGURATION}" = "Release" ]; then
echo Do something really release-like
fi
The script will run at the end of every configuration, but it won't do anything in this case unless the configuration is Release (assumi...
What does “Could not find or load main class” mean?
... option (starting with a "-" character), <class-name> is a fully qualified Java class name, and <arg> is an arbitrary command line argument that gets passed to your application.
1 - There are some other syntaxes which are described near the end of this answer.
The fully qualified n...
Pull request without forking?
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If you don't have access to create branches on that repository, there is no way to create a pull request without forking.
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CSS selector by inline style attribute
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The inline style attribute is no different to any other HTML attribute and can be matched with a substring attribute selector:
div[style*="display:block"]
It is for this very reason however that it's extremely fragile. As attribute selectors don't support ...
How do you use the Immediate Window in Visual Studio?
...tudio is its ability to evaluate the return value of a method particularly if it is called by your client code but it is not part of a variable assignment. In Debug mode, as mentioned, you can interact with variables and execute expressions in memory which plays an important role in being able to do...
Ruby Array find_first object?
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use array detect method if you wanted to return first value where block returns true
[1,2,3,11,34].detect(&:even?) #=> 2
OR
[1,2,3,11,34].detect{|i| i.even?} #=> 2
If you wanted to return all values where block returns true then use s...
LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria
...e that you only want the first one.
I personally find the semantics very different and using the appropriate one, depending on the expected results, improves readability.
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Creating a zero-filled pandas data frame
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Note that you may run into int/float issue if you will be doing something like d.set_value(params) after initializing d to contain 0's. An easy fix is: d = pd.DataFrame(0.0, index=np.arange(len(data)), columns=feature_list).
– ximiki
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Detect network connection type on Android
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If the problem is to find whether the phone's network is connected and fast enough to meet your demands you have to handle all the network types returned by getSubType().
It took me an hour or two to research and write this ...