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How do I convert a NSString into a std::string?
...string bar = std::string([foo UTF8String]);
Edit: After a few years, let me expand on this answer. As rightfully pointed out, you'll most likely want to use cStringUsingEncoding: with NSASCIIStringEncoding if you are going to end up using std::string. You can use UTF-8 with normal std::strings, bu...
What exactly do “u” and “r” string flags do, and what are raw string literals?
...ng this question , I realized I didn't know much about raw strings. For somebody claiming to be a Django trainer, this sucks.
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find -exec cmd {} + vs | xargs
...insignificant.
But you have to make sure that:
Your script will not assume that no
file will have space, tab, etc in
file name; the first version is
safe, the second is not.
Your script will not treat a file starting with "-" as an option.
So your code should look like this:
find . -exec cmd -...
Check whether user has a Chrome extension installed
I am in the process of building a Chrome extension, and for the whole thing to work the way I would like it to, I need an external JavaScript script to be able to detect if a user has my extension installed.
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linq where list contains any in list
...ng to use this query for search box, it searches any character in Person_Name column, i got this error :'DbIntersectExpression requires arguments with compatible collection ResultTypes' so i tried .StartWith, .EndsWith, .Contains from here it works, but what can be done to use your query
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Python Pandas merge only certain columns
Is it possible to only merge some columns? I have a DataFrame df1 with columns x, y, z, and df2 with columns x, a ,b, c, d, e, f, etc.
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Update Row if it Exists Else Insert Logic with Entity Framework
Does anyone have suggestions on the most efficient way to implement "update row if it exists else insert" logic using Entity Framework?
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File content into unix variable with newlines
...
The assignment does not remove the newline characters, it's actually the echo doing this. You need simply put quotes around the string to maintain those newlines:
echo "$testvar"
This wil give the result you want. See the following ...
How would I get a cron job to run every 30 minutes?
...e a script every 30 minutes, on the hour and 30 minutes past the hour or something close. I have the following, but it doesn't seem to run on 0.
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Replacing some characters in a string with another character
...exchange.com/questions/13711/… Instead you can install "gnu-sed" with Homebrew package manager then use the gsed binary: $ brew install gnu-sed then $ gsed -r 's/[xyz]+/_/g'
– John Kary
Apr 8 '15 at 21:33
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