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Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
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137
This is an incompatibility between Rails 2.3.8 and recent versions of RubyGems. Upgrade to the ...
How do I check if a string is unicode or ascii?
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301
In Python 3, all strings are sequences of Unicode characters. There is a bytes type that holds...
Using async/await for multiple tasks
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int[] ids = new[] { 1, 2, 3, 4, 5 };
Parallel.ForEach(ids, i => DoSomething(1, i, blogClient).Wait());
Although you run the operations in parallel with the above code, this code blocks each thread that each operation runs on. For example, if the ...
Python, compute list difference
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373
If the order does not matter, you can simply calculate the set difference:
>>> set([...
How can I multiply all items in a list together with Python?
...t takes
a list of numbers and multiplies them together. Example:
[1,2,3,4,5,6] will give me 1*2*3*4*5*6 . I could really use your help.
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Read stream twice
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Captain Man
5,26733 gold badges3636 silver badges6161 bronze badges
answered Feb 29 '12 at 14:59
Paul GrimePaul Grime
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Pad a string with leading zeros so it's 3 characters long in SQL Server 2008
I have a string that is up to 3 characters long when it's first created in SQL Server 2008 R2.
17 Answers
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Windows shell command to get the full path to the current directory?
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369
Use cd with no arguments if you're using the shell directly, or %cd% if you want to use it in ...
Syntax for creating a two-dimensional array
...ti[0] = new int[10];
multi[1] = new int[10];
multi[2] = new int[10];
multi[3] = new int[10];
multi[4] = new int[10];
Note that every element will be initialized to the default value for int, 0, so the above are also equivalent to:
int[][] multi = new int[][]{
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]
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3 Answers
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