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Difference between modes a, a+, w, w+, and r+ in built-in open function?

...e then current end of file, irrespective of any intervening fseek(3) or similar. ``a+'' Open for reading and writing. The file is created if it does not exist. The stream is positioned at the end of the file. Subse- quent writes to the file will always end up at the ...
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mongodb/mongoose findMany - find all documents with IDs listed in array

...ame. model.find({ '_id': { $in: [ mongoose.Types.ObjectId('4ed3ede8844f0f351100000c'), mongoose.Types.ObjectId('4ed3f117a844e0471100000d'), mongoose.Types.ObjectId('4ed3f18132f50c491100000e') ]} }, function(err, docs){ console.log(docs); }); This method will ...
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What is the Bash equivalent of Python's pass statement

... answered Mar 10 '10 at 23:55 Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams 668k127127 gold badges11911191 silver badges12501250 bronze badges ...
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Why does 2 mod 4 = 2?

...| edited Aug 29 '09 at 17:33 Joe Phillips 43k2424 gold badges8989 silver badges147147 bronze badges answ...
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How to get a random value from dictionary in python

...l work in Python 2.x where d.keys() is a list, but it won't work in Python 3.x where d.keys() is an iterator. You should do random.choice(list(d.keys())) instead. – Duncan Feb 1 '11 at 9:42 ...
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How to vertically center divs? [duplicate]

... 243 The best approach in modern browsers is to use flexbox: #Login { display: flex; align-i...
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RESTful Login Failure: Return 401 or Custom Response

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How do I clone a generic list in C#?

... 398 You can use an extension method. static class Extensions { public static IList<T> C...
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Detect if homebrew package is installed

... | edited Feb 3 '17 at 16:33 razzed 2,5472424 silver badges2626 bronze badges answered Dec 2...
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How can I create a unique constraint on my column (SQL Server 2008 R2)?

... answered Mar 3 '11 at 14:41 Martin SmithMartin Smith 389k7575 gold badges657657 silver badges761761 bronze badges ...