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(this == null) in C#!
Due to a bug that was fixed in C# 4, the following program prints true . (Try it in LINQPad)
6 Answers
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Browse and display files in a git repo without cloning
Is there a way to browse and display files in a git repo without cloning it first? I can do those in svn using the commands:
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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
...ike to write a single SQL command to drop multiple columns from a single table in one ALTER TABLE statement.
11 Answers
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What does the “map” method do in Ruby?
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The map method takes an enumerable object and a block, and runs the block for each element, outputting each returned value from the block (the original object is unchanged unless you use map!):
[1, 2, 3].map { |n| n * n } #=> [1, 4, 9]
Array and Rang...
Python memoising/deferred lookup property decorator
Recently I've gone through an existing code base containing many classes where instance attributes reflect values stored in a database. I've refactored a lot of these attributes to have their database lookups be deferred, ie. not be initialised in the constructor but only upon first read. These attr...
How do I associate a Vagrant project directory with an existing VirtualBox VM?
Somehow my Vagrant project has disassociated itself from its VirtualBox VM, so that when I vagrant up Vagrant will import the base-box and create a new virtual machine.
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How to normalize a NumPy array to within a certain range?
After doing some processing on an audio or image array, it needs to be normalized within a range before it can be written back to a file. This can be done like so:
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How to check that a string is a palindrome using regular expressions?
That was an interview question that I was unable to answer:
32 Answers
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Lambda capture as const reference?
Is it possible to capture by const reference in a lambda expression?
8 Answers
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How do I initialize an empty array in C#?
Is it possible to create an empty array without specifying the size?
13 Answers
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