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How to generate a random number between a and b in Ruby?
To generate a random number between 3 and 10, for example, I use: rand(8) + 3
8 Answers
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C# LINQ find duplicates in List
... , how can I retrieve a list that contains entries repeated more than once and their values?
9 Answers
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'sudo gem install' or 'gem install' and gem locations
Running ' sudo gem list --local ' and ' gem list --local ' give me differing results. My gem path is set to my home folder and only contains the gems from ' gem list --local '.
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Scala Doubles, and Precision
...likely, I'd say. Anything involving grids or finance can require rounding and also performance.
– Rex Kerr
Jun 19 '12 at 20:33
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How to atomically delete keys matching a pattern using Redis
...ing: As the Redis document says, because of performance maters, keys
command should not use for regular operations in production, this
command is intended for debugging and special operations. read
more
See the EVAL documentation.
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How can I run dos2unix on an entire directory? [closed]
...args -0 dos2unix
Will recursively find all files inside current directory and call for these files dos2unix command
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Building executable jar with maven?
...6: someone fixed it, this answer refers to the version preceding the edit) and this explains, at least partially, why you run into troubles.
It generates two jar files in logmanager/target: logmanager-0.1.0.jar, and logmanager-0.1.0-jar-with-dependencies.jar.
The first one is the JAR of the logma...
What's the difference between using CGFloat and float?
...mething "heavier" than float, right? At which points should I use CGFloat, and what makes really the difference?
5 Answers
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What's the best way to set a single pixel in an HTML5 canvas?
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There are two best contenders:
Create a 1×1 image data, set the color, and putImageData at the location:
var id = myContext.createImageData(1,1); // only do this once per page
var d = id.data; // only do this once per page
d[0] = r;
d[1] = g;
d[2] = b;
d[3] = a;
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Recursively add files by pattern
...lem: how do you get a list of files to provide as arguments to a given command.
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