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Regular expression for a hexadecimal number?
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How about the following?
0[xX][0-9a-fA-F]+
Matches expression starting with a 0, following by either a lower or uppercase x, followed by one or more characters in the ranges 0-9, or a-f, or A-F
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How to get the type of a variable in MATLAB?
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answered Feb 23 '09 at 17:36
Daniel LeCheminantDaniel LeCheminant
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Getting the count of unique values in a column in bash
....Paused until further notice.
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Undefined method 'task' using Rake 0.9.0
I just updated Rake to the latest version ( 0.9.0.beta.4 ) and the rake command ends up with the following error message:
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Is 1.0 a valid output from std::generate_canonical?
...o and one, without 1 , i.e. they are numbers from the half-open interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this.
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How to find Unused Amazon EC2 Security groups
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edited Jul 1 at 20:15
Dherik
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What is the default value for enum variable?
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It is whatever member of the enumeration represents the value 0. Specifically, from the documentation:
The default value of an enum E is the value produced by the expression (E)0.
As an example, take the following enum:
enum E
{
Foo, Bar, Baz, Quux
}
Without overriding the ...
vertical & horizontal lines in matplotlib
...is range, regardless of coordinates. The parameters xmin or ymin use value 0.0 as the minimum of the axis and 1.0 as the maximum of the axis.
Instead, use plt.plot((x1, x2), (y1, y2), 'k-') to draw a line from the point (x1, y1) to the point (x2, y2) in color k. See pyplot.plot.
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How to run cron once, daily at 10pm
...2 I guess. Try the following to run it every first minute of the hour 22:
0 22 * * * ....
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Get the current year in JavaScript
...ily: sans-serif;
}
<footer>
&copy; <span id="year">2018</span> by FooBar
</footer>
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