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Find if current time falls in a time range
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edited Oct 1 '09 at 17:55
answered Oct 1 '09 at 15:08
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LINQ Ring: Any() vs Contains() for Huge Collections
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Contains() is an instance method, and its performance depends largely on the collection itself. For instance, Contains() on a List is O(n), while Contains() on a HashSet is O(1).
Any() is an extension method, and will simply go through the collection, applying t...
Why {} + {} is NaN only on the client side? Why not in Node.js?
...^[\r\n\s]*function/.test(evalCmd) || e) {
// Now as statement without parens.
self.eval(evalCmd, self.context, 'repl', finish);
}
else {
finish(null, ret);
}
}
);
This acts just like running ({}+{}) in the Chrome developer tools, whic...
Copy folder structure (without files) from one location to another
... multi-terabyte file server. I know that cp --parents can move a file and it's parent structure, but is there any way to copy the directory structure intact?
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Checking if a key exists in a JS object
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edited Dec 5 '14 at 15:30
answered Jun 15 '13 at 18:10
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snprintf and Visual Studio 2010
...ented snprintf in Visual Studio 2015. On earlier versions you can simulate it as below.
Long version:
Here is the expected behavior for snprintf:
int snprintf( char* buffer, std::size_t buf_size, const char* format, ... );
Writes at most buf_size - 1 characters to a buffer. The resulting
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Batch Renaming of Files in a Directory
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Such renaming is quite easy, for example with os and glob modules:
import glob, os
def rename(dir, pattern, titlePattern):
for pathAndFilename in glob.iglob(os.path.join(dir, pattern)):
title, ext = os.path.splitext(os.path.basena...
How do you get centered content using Twitter Bootstrap?
...wer (pre 2.3.0)
You need to define one of the two classes, row or span12 with a text-align: center. See http://jsfiddle.net/xKSUH/ or http://jsfiddle.net/xKSUH/1/
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Get a pixel from HTML Canvas?
Is it possible to query a HTML Canvas object to get the color at a specific location?
10 Answers
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How to add a new row to an empty numpy array
...hat you want is:
arr = np.empty((0,3), int)
Which is an empty array but it has the proper dimensionality.
>>> arr
array([], shape=(0, 3), dtype=int64)
Then be sure to append along axis 0:
arr = np.append(arr, np.array([[1,2,3]]), axis=0)
arr = np.append(arr, np.array([[4,5,6]]), axis...