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The smallest difference between 2 Angles
...ives a signed angle for any angles:
a = targetA - sourceA
a = (a + 180) % 360 - 180
Beware in many languages the modulo operation returns a value with the same sign as the dividend (like C, C++, C#, JavaScript, full list here). This requires a custom mod function like so:
mod = (a, n) -> a - ...
No tests found with test runner 'JUnit 4'
...olved it by renaming one of the test methods to start with "test..." (JUnit3 style) and then all tests are found. I renamed it back to what it was previously, and it still works.
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Ruby: Easiest Way to Filter Hash Keys?
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13 Answers
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What is the optimal length for an email address in a database?
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The maximum length of an email address is 254 characters.
Every email address is composed of t...
How do I manipulate a variable whose name conflicts with PDB commands?
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Use an exclamation mark ! before a statement to have it run :
python -m pdb test.py
> /home...
Which types can be used for Java annotation members?
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It's specified by section 9.6.1 of the JLS. The annotation member types must be one of:
primi...
Correct way to quit a Qt program?
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edited Jul 5 '18 at 13:33
answered Nov 6 '11 at 10:06
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What does -save-dev mean in npm install grunt --save-dev
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--save-dev: Package will appear in your devDependencies.
According to the npm install doc...
Learning Python from Ruby; Differences and Similarities
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Here are some key differences to me:
Ruby has blocks; Python does not.
Python has functions; R...
Best practices for API versioning? [closed]
...which becomes apparent) but only for a limited time
For example, if API v3.0 is the latest API version, the following two should be aliases (i.e. behave identically to all API requests):
http://shonzilla/api/customers/1234
http://shonzilla/api/v3.0/customers/1234
http://shonzilla/api/v3/customer...