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Variable interpolation in the shell
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192
Use
"$filepath"_newstap.sh
or
${filepath}_newstap.sh
or
$filepath\_newstap.sh
_ is a ...
How to write binary data to stdout in python 3?
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171
A better way:
import sys
sys.stdout.buffer.write(b"some binary data")
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What are 'get' and 'set' in Swift?
...e variable from another object, it looks like this:
myTriangle.perimeter = 100
Which invokes the code in the set{} block:
set {
sideLength = newValue / 3.0
}
And so it's like if the class that's setting the variable had done this:
myTriangle.sideLength = 100/3.0
It's really just for convenien...
What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
...ic sort compares the numbers as floats, this allows scientific notation eg 1.234E10 but is slower and subject to rounding error (1.2345678 could come after 1.2345679), numeric sort is just a regular alphabetic sort that knows 10 comes after 9.
See http://www.gnu.org/software/coreutils/manual/h...
SQL RANK() versus ROW_NUMBER()
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ROW_NUMBER : Returns a unique number for each row starting with 1. For rows that have duplicate values,numbers are arbitarily assigned.
Rank : Assigns a unique number for each row starting with 1,except for rows that have duplicate values,in which case the same ranking is assigned and a ...
How to get one value at a time from a generator function in Python?
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157
Yes, or next(gen) in 2.6+.
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Disable ALL CAPS menu items in Visual Studio 2013
In Visual Studio 2013, Microsoft again presents the menu in UPPERCASE as the default.
6 Answers
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Convert numpy array to tuple
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161
>>> arr = numpy.array(((2,2),(2,-2)))
>>> tuple(map(tuple, arr))
((2, 2), (2...
How do I detect what .NET Framework versions and service packs are installed?
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13 Answers
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