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What is non-blocking or asynchronous I/O in Node.js?
...em('foo');
alert(2);
// Non-blocking: 1, 3,... 2
alert(1);
fetch('example.com').then(() => alert(2));
alert(3);
Advantages
One advantage of non-blocking, asynchronous operations is that you can maximize the usage of a single CPU as well as memory.
Synchronous, blocking example
An example of...
List all the files that ever existed in a Git repository
...t -f2- | sort -u
Edit: Thanks to Jakub for teaching me a bit more in the comments, this version has a shorter pipeline and gives git more opportunity to get things right.
git log --pretty=format: --name-only --diff-filter=A | sort -u
...
In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...y do "0" == false, both sides are being converted to numbers, and then the comparison is performed.
When you do: if ("0") console.log("ha"), the string value is being tested. Any non-empty string is true, while an empty string is false.
Equal (==)
If the two operands are not of the same ty...
Algorithm to randomly generate an aesthetically-pleasing color palette [closed]
...further, you could add heuristics to your generator that take into account complementary colors or levels of shading, but it all depends on the impression you want to achieve with your random colors.
Some additional resources:
http://en.wikipedia.org/wiki/Color_theory
http://en.wikipedia.org/wiki...
Where is logback encoder pattern documentation
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Calling Python in Java?
... obviously not the case ;) "Error" does not mean runtime error, could be a compile error as well.
– Voo
Jan 17 '12 at 20:28
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Force update of an Android app when a new version is available
... Play Store. When an update version is available, the older version will become unusable – that is, if users do not update the app, they do not enter in the app. How can I force users to update the app when a new version becomes available?
...
What is the Java equivalent for LINQ? [closed]
... makes LINQ sooo nice is how deeply it is integrated into the language and compiler
– AgileJon
Aug 1 '09 at 18:59
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Create Directory if it doesn't exist with Ruby
...ave to use FileUtils, you may do system call (update from @mu is too short comment):
> system 'mkdir', '-p', 'foo/bar' # worse version: system 'mkdir -p "foo/bar"'
=> true
But that seems (at least to me) as worse approach as you are using external 'tool' which may be unavailable on some sys...