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Define all functions in one .R file, call them from another .R file. How, if possible?
...") (assuming that both these files are in your current working directory.
If abc.R is:
fooABC <- function(x) {
k <- x+1
return(k)
}
and xyz.R is:
fooXYZ <- function(x) {
k <- fooABC(x)+1
return(k)
}
then this will work:
> source("abc.R")
> source("xyz.R")
&g...
How do I check if an object has a specific property in JavaScript?
How do I check if an object has a specific property in JavaScript?
24 Answers
24
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Servlet for serving static content
I deploy a webapp on two different containers (Tomcat and Jetty), but their default servlets for serving the static content have a different way of handling the URL structure I want to use ( details ).
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Is it safe to check floating point values for equality to 0?
...equality between double or decimal type values normally, but I'm wondering if 0 is a special case.
9 Answers
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Getting the name of a variable as a string
...tly with the variable
I am the author of this package. Please let me know if you have any questions or you can submit issues on Github.
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How to check if a String contains another String in a case insensitive manner in Java?
...uote(wantedStr), Pattern.CASE_INSENSITIVE).matcher(source).find();
EDIT: If s2 contains regex special characters (of which there are many) it's important to quote it first. I've corrected my answer since it is the first one people will see, but vote up Matt Quail's since he pointed this out.
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
...et billionlog2(100) which is better than billionlog2(billion)
In general, if you need the largest K numbers from a set of N numbers, the complexity is O(NlogK) rather than O(NlogN), this can be very significant when K is very small comparing to N.
EDIT2:
The expected time of this algorithm is pre...
Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
Will ConfigurationManager.AppSettings["blah"] throw an exception if "blah" doesn't exist in the web/app.config?
6 Answers
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How to convert a Binary String to a base 10 integer in Java
...
You need to specify the radix. There's an overload of Integer#parseInt() which allows you to.
int foo = Integer.parseInt("1001", 2);
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How to build query string with Javascript
Just wondering if there is anything built-in to Javascript that can take a Form and return the query parameters, eg: "var1=value&var2=value2&arr[]=foo&arr[]=bar..."
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