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How to get numbers after decimal point?
...On a Raspberry Pi this method x%1 was almost twice as fast as the x-int(x) and modf(x)[0] methods (the timings were 980ns, 1.39us, and 1.47us averaged over 1000000 runs). My value for x was always positive so I did not have to worry about that.
– coderforlife
J...
Extracting the last n characters from a string in R
...se R, but it's straight-forward to make a function to do this using substr and nchar:
x <- "some text in a string"
substrRight <- function(x, n){
substr(x, nchar(x)-n+1, nchar(x))
}
substrRight(x, 6)
[1] "string"
substrRight(x, 8)
[1] "a string"
This is vectorised, as @mdsumner point...
How to store CGRect values in NSMutableArray?
How would I store CGRect objects in a NSMutableArray, and then later retrieve them?
4 Answers
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ASP.NET MVC ambiguous action methods
...w using two different routes, either by an item's ID or by the item's name and its parent's (items can have the same name across different parents). A search term can be used to filter the list.
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What does “rc” mean in dot files
...
It looks like one of the following:
run commands
resource control
run control
runtime configuration
Also I've found a citation:
The ‘rc’ suffix goes back to Unix's grandparent, CTSS. It had a command-script feature called "runcom". Early Unixes used ‘rc...
How to compare two strings in dot separated version format in Bash?
Is there any way to compare such strings on bash, e.g.: 2.4.5 and 2.8 and 2.4.5.1 ?
29 Answers
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How do I create an empty array in YAML?
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I just wanted to add that you can go into irb and type something like: "require 'yaml'; YAML::dump({ :hi => [] })" to see what the yaml should be for an object.
– Mike A.
Feb 24 '11 at 21:15
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JavaScript Nested function
I got a piece of code for javascript which I just do not understand:
7 Answers
7
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How to RedirectToAction in ASP.NET MVC without losing request data
..."] to
System.Collections.Specialized.NameValueCollection
and use it */
}
return View("Form", viewData);
}
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Node.js client for a socket.io server
I have a socket.io server running and a matching webpage with a socket.io.js client. All works fine.
5 Answers
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