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Ruby: Change negative number to positive number?
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Using abs will return the absolute value of a number
-300.abs # 300
300.abs # 300
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How to assertThat something is null with Hamcrest?
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260
You can use IsNull.nullValue() method:
import static org.hamcrest.Matchers.is;
import static or...
Group by & count function in sqlalchemy
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The documentation on counting says that for group_by queries it is better to use func.count():
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What is the meaning of git reset --hard origin/master?
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CB BaileyCB Bailey
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Do you need to close meta and link tags in HTML?
...t it causes no harm (except if you try to validate e.g. against the HTML 4.01 doctype).
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How to play a local video with Swift?
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Luca AngelettiLuca Angeletti
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How to print (using cout) a number in binary form?
...rry Coffin
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Change the name of the :id parameter in Routing resources for Rails
...ditional scope blocks to take out some of the repetition.
EDIT (May 8, 2014): Make it more obvious the answer contains information for both Rails 3 & 4. Update the links to the code to go to exact line numbers and commits so that they should work for a longer period of time.
EDIT (Nov 16, 20...
How to create major and minor gridlines with different linestyles in Python
...e as setting major and minor separately:
In [9]: plot([23, 456, 676, 89, 906, 34, 2345])
Out[9]: [<matplotlib.lines.Line2D at 0x6112f90>]
In [10]: yscale('log')
In [11]: grid(b=True, which='major', color='b', linestyle='-')
In [12]: grid(b=True, which='minor', color='r', linestyle='--')
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What is the “main file” property when doing bower init?
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According to the Bower.io documentation
main
Recommended Type: String or Array of ...