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Why is Node.js single threaded? [closed]
...ables!) I understand that I/O operations are event-based so they don't block the main thread loop.
3 Answers
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How to delete duplicate rows in SQL Server?
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I like CTEs and ROW_NUMBER as the two combined allow us to see which rows are deleted (or updated), therefore just change the DELETE FROM CTE... to SELECT * FROM CTE:
WITH CTE AS(
SELECT [col1], [col2], [col3], [col4], [col5]...
Scala vs. Groovy vs. Clojure [closed]
... please explain the major differences between Scala, Groovy and Clojure. I know each of these compiles to run on the JVM but I'd like a simple comparison between them.
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How do I get the path of the assembly the code is in?
... edited Aug 27 '14 at 20:00
Mikael Engver
3,86833 gold badges3737 silver badges5151 bronze badges
answered Nov 12 '08 at 13:24
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File uploading with Express 4.0: req.files undefined
I'm attempting to get a simple file upload mechanism working with Express 4.0 but I keep getting undefined for req.files in the app.post body. Here is the relevant code:
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std::auto_ptr to std::unique_ptr
...You cannot do a global find/replace because you can copy an auto_ptr (with known consequences), but a unique_ptr can only be moved. Anything that looks like
std::auto_ptr<int> p(new int);
std::auto_ptr<int> p2 = p;
will have to become at least like this
std::unique_ptr<int> p(...
Why do we use $rootScope.$broadcast in AngularJS?
...e.$broadcast.apply?
Sometimes you have to use apply(), especially when working with directives and other JS libraries. However since I don't know that code base, I wouldn't be able to tell if that's the case here.
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Where does 'Hello world' come from?
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Brian Kernighan actually wrote the first "hello, world" program as part of the documentation for the BCPL programming language developed by Martin Richards. BCPL was used while C was being developed at Bell Labs a few years before ...
Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat
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From "Equivalent of Bash Backticks in Python", which I asked a long time ago, what you may want to use is popen:
os.popen('cat /etc/services').read()
From the docs for Python 3.6,
This is implemented using subprocess.Popen; see that class’s
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Changing the child element's CSS when the parent is hovered
...t just use CSS?
.parent:hover .child, .parent.hover .child { display: block; }
and then add JS for IE6 (inside a conditional comment for instance) which doesn't support :hover properly:
jQuery('.parent').hover(function () {
jQuery(this).addClass('hover');
}, function () {
jQuery(this).re...