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How does the Windows Command Interpreter (CMD.EXE) parse scripts?
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201
We performed experiments to investigate the grammar of batch scripts. We also investigated dif...
Python List vs. Array - when to use?
...ray.array is also a reasonable way to represent a mutable string in Python 2.x (array('B', bytes)). However, Python 2.6+ and 3.x offer a mutable byte string as bytearray.
However, if you want to do math on a homogeneous array of numeric data, then you're much better off using NumPy, which can automa...
Storing SHA1 hash values in MySQL
...racters. But if you use 8 bit per character, you would only need a 160/8 = 20 character long field.
So I recommend you to use BINARY(20) and the UNHEX function to convert the SHA1 value to binary.
I compared storage requirements for BINARY(20) and CHAR(40).
CREATE TABLE `binary` (
`id` int un...
Assign variable in if condition statement, good practice or not? [closed]
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I wouldn't recommend it. The problem is, it looks like a common error where you try to compare ...
Sorting data based on second column of a file
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You can use the sort command:
sort -k2 -n yourfile
-n, --numeric-sort compare according to string numerical value
For example:
$ cat ages.txt
Bob 12
Jane 48
Mark 3
Tashi 54
$ sort -k2 -n ages.txt
Mark 3
Bob 12
Jane 48
Tashi 54
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Generic List - moving an item within the list
...ially what the ObservableCollection does in it's own Move method.
UPDATE 2015-12-30: You can see the source code for the Move and MoveItem methods in corefx now for yourself without using Reflector/ILSpy since .NET is open source.
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How to clone git repository with specific revision/changeset?
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UPDATE 2 Since Git 2.5.0 the feature described below can be enabled on server side with config...
Keep only first n characters in a string?
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edited Apr 12 '14 at 11:37
andrewb
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Replacement for deprecated sizeWithFont: in iOS 7?
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20 Answers
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Add an element to an array in Swift
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answered Jun 2 '14 at 20:33
Mick MacCallumMick MacCallum
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