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Is there an R function for finding the index of an element in a vector?
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the function Position in funprog {base} also does the job. It allows you to pass an arbitrary function, and returns the first or last match.
Position(f, x, right = FALSE, nomatch = NA_integer)
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Multiline Comment Workarounds?
... an interactive environment (i.e.: command-line) rather than mostly a file-based interpreter where multi-line comments would be more common. So not philosophical -- it has grown this way.
– Dirk Eddelbuettel
Aug 6 '09 at 22:04
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Why use Ruby instead of Smalltalk? [closed]
...n.As an aside, Java was not the easiest thing to interface with other code bases (JNI is fairly clumsy), but that did not stop it from gaining mindshare. IMO the interfacing argument is significant - ease of embedding hasn't hurt Python - but this argument only holds moderate weight as not all appl...
What is correct HTTP status code when redirecting to a login page?
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Hypertext Transfer Protocol (HTTP) Authentication Scheme
Registry
Cookie-based HTTP Authentication - DRAFT
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Locking pattern for proper use of .NET MemoryCache
...of C# In a Nutshell discusses this here, albahari.com/threading/part2.aspx#_MonitorEnter_and_MonitorExit
– BrutalSimplicity
May 12 '18 at 15:27
9
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How to compute the sum and average of elements in an array?
...ngth; i++ ){
sum += parseInt( elmt[i], 10 ); //don't forget to add the base
}
var avg = sum/elmt.length;
document.write( "The sum of all the elements is: " + sum + " The average is: " + avg );
Just iterate through the array, since your values are strings, they have to be converted to an inte...
What characters are forbidden in Windows and Linux directory names?
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254 files? And what about utf8?
– j_kubik
Sep 9 '12 at 1:33
21
The 254 files we...
Nullable vs. int? - Is there any difference?
...d override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<MyEntity>().Property(x => x.MyNullableInt).IsOptional();
}
}
On the other hand, if you declare your entity like:
public class MyEntity
{
pub...
Finding three elements in an array whose sum is closest to a given number
...uch sum the first term (A[j]) will be the same...
– j_random_hacker
Oct 3 '12 at 18:30
1
... and ...
Attach IntelliJ IDEA debugger to a running Java process
...at-juli.jar
Java Options:
-Dcatalina.home=C:\tomcat
-Dcatalina.base=C:\tomcat
-Djava.io.tmpdir=C:\tomcat\temp
-Djava.util.logging.config.file=C:\tomcat\conf\logging.properties
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:8000
Java 9 options:
--add-...