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How to detect if multiple keys are pressed at once using JavaScript?
...r map = [], so users of your site won't get frustrated when the "Duplicate File" function, being put on CtrlD, bookmarks the page instead.
if(map[17] && map[68]){ // CTRL+D
alert('The bookmark window didn\'t pop up!');
map = {};
return false;
}
Without return false, the Bookmark...
Xamarin 2.0 vs Appcelerator Titanium vs PhoneGap [duplicate]
... PhoneGap applications, developers will create HTML, CSS,
and JavaScript files in a local directory, much like developing a
static website. Approaching native-quality UI performance in the
browser is a non-trivial task - Sencha employs a large team of web
programming experts dedicated full-t...
How to generate random SHA1 hash to use as ID in node.js?
...ran it in 4 threads (I have a 4-core processor), appending the output to a file
$ yes | xargs -n 1 -P 4 node random_zero.js >> zeroes.txt
So it turns out that a 0 is not that hard to get. After 100 values were recorded, the average was
1 in 3,164,854,823 randoms is a 0
Cool! More rese...
How do I plot in real-time in a while loop using matplotlib?
....exit(app.exec_())
Just try it out. Copy-paste this code in a new python-file, and run it. You should get a beautiful, smoothly moving graph:
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How should one use std::optional?
...I often use optionals to represent optional data pulled from configuration files, that is to say where that data (such as with an expected, yet not necessary, element within an XML document) is optionally provided, so that I can explicitly and clearly show if the data was actually present in the XML...
Difference between Char.IsDigit() and Char.IsNumber() in C#
...rLikes.Contains(Char.GetUnicodeCategory(c)))
{
File.AppendAllText("IsNumberLike.txt", string.Format("{0},{1},{2},&#{3};,{4},{5}\n", i, c, Char.GetUnicodeCategory(c), i, Char.IsNumber(c), Char.IsDigit(c)));
}
}
}
Result looks following: As you...
In C#, What is a monad?
... that would do what you want if you could (for example) write to an output file. Almost (but not really) as if you were building code in a string to later be eval'd.
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Can you explain the HttpURLConnection connection process?
...the packet exchange captured when I try to write a small program to upload file to Dropbox.
Below is my toy program and annotation
/* Create a connection LOCAL object,
* the openConnection() function DOES NOT initiate
* any packet exchange with the remote server.
*
* The...
xkcd style graphs in MATLAB
...ution!).
This solution relies on two key functions: EXPORT_FIG from the file exchange to get an anti-aliased screenshot, and IMTRANSFORM to get a transformation.
%# define plot data
x = 1:0.1:10;
y1 = sin(x).*exp(-x/3) + 3;
y2 = 3*exp(-(x-7).^2/2) + 1;
%# plot
fh = figure('color','w');
hold on
...
Using Kafka as a (CQRS) Eventstore. Good idea?
... one or more partitions and each partition is stored as a directory on the file system. There will also be pressure from ZooKeeper as the number of znodes increases.
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