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What is the fastest or most elegant way to compute a set difference using Javascript arrays?

... B be two sets. I'm looking for really fast or elegant ways to compute the set difference ( A - B or A \B , depending on your preference) between them. The two sets are stored and manipulated as Javascript arrays, as the title says. ...
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Multiplication on command line terminal

I'm using a serial terminal to provide input into our lab experiment. I found that using 8 Answers ...
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Execution time of C program

I have a C program that aims to be run in parallel on several processors. I need to be able to record the execution time (which could be anywhere from 1 second to several minutes). I have searched for answers, but they all seem to suggest using the clock() function, which then involves calculating...
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What is the id( ) function used for?

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Limitations of Intel Assembly Syntax Compared to AT&T [closed]

To me, Intel syntax is much easier to read. If I go traipsing through assembly forest concentrating only on Intel syntax, will I miss anything? Is there any reason I would want to switch to AT&T (outside of being able to read others' AT&T assembly)? My first clue is that gdb uses AT&T by default. ...
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Scala 2.8 breakOut

In Scala 2.8 , there is an object in scala.collection.package.scala : 4 Answers 4 ...
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What does iota of std::iota stand for?

I'm assuming the "i" is increment and the "a" is assign, but I could not figure out or find the answer. Also, it looks very similar to the non-standard itoa which I think is confusing. ...
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Shell command to sum integers, one per line?

I am looking for a command that will accept (as input) multiple lines of text, each line containing a single integer, and output the sum of these integers. ...
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Iterating over Java collections in Scala

I'm writing some Scala code which uses the Apache POI API. I would like to iterate over the rows contained in the java.util.Iterator that I get from the Sheet class. I would like to use the iterator in a for each style loop, so I have been trying to convert it to a native Scala collection but ...
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What is the best regular expression to check if a string is a valid URL?

How can I check if a given string is a valid URL address? 55 Answers 55 ...