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In Typescript, How to check if a string is Numeric
... edited Feb 13 '18 at 14:19
k0pernikus
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answered May 3 '14 at 6:09
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SQL query return data from multiple tables
...l auto_increment primary key,
-> color varchar(15), paint varchar(10));
Query OK, 0 rows affected (0.01 sec)
mysql> show columns from colors;
+-------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+---------...
Principal component analysis in Python
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edited Sep 3 '10 at 11:40
nikow
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How to normalize a NumPy array to within a certain range?
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audio /= np.max(np.abs(audio),axis=0)
image *= (255.0/image.max())
Using /= and *= allows you ...
How to compare two colors for similarity/difference
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answered Jan 26 '12 at 14:20
Liudvikas BukysLiudvikas Bukys
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What does `someObject.new` do in Java?
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It's the way to instantiate a non-static inner class from outside the containing class body, as ...
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
... Functions can be called in either order
**/
return 0;
}
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How to clear the canvas for redrawing
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const context = canvas.getContext('2d');
context.clearRect(0, 0, canvas.width, canvas.height);
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How to get the seconds since epoch from the time + date output of gmtime()?
...calendar.timegm().
>>> calendar.timegm(time.gmtime())
1293581619.0
You can turn your string into a time tuple with time.strptime(), which returns a time tuple that you can pass to calendar.timegm():
>>> import calendar
>>> import time
>>> calendar.timegm(time....
Representing and solving a maze given an image
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