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What does it mean when git says a file “needs update”?
...time to time. Even the official git FAQ has explaining this marked as a TODO. If someone could explain A) what it means; and B) how to fix it, I would be extremely grateful.
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How can I initialize an ArrayList with all zeroes in Java?
It looks like arraylist is not doing its job for presizing:
5 Answers
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Python Requests and persistent sessions
...('https://localhost/profile_data.json', ...)
#cookies sent automatically!
#do whatever, s will keep your cookies intact :)
For more about sessions: https://requests.kennethreitz.org/en/master/user/advanced/#session-objects
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Select multiple columns in data.table by their numeric indices
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any way to do this without with? for example DT[,list(b:c), as I found it convenient to transform the columns directly in the data table, e.g I can do DT[,list(1/b,2*c)], but this does not work with with.
– jambort...
What is the difference between setUp() and setUpClass() in Python unittest?
... when you have more than one test method in your class. setUpClass and tearDownClass are run once for the whole class; setUp and tearDown are run before and after each test method.
For example:
class Example(unittest.TestCase):
@classmethod
def setUpClass(cls):
print("setUpClass")
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Java: Static Class?
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@matt b: As David Robles points out in his answer, you do not need to make the class final... it cannot be subclassed because a subclass will be unable to invoke a super class constructor because it is private. However... no harm in being explicit. But jfyi :-).
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Refresh a page using JavaScript or HTML [duplicate]
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window.location.reload(); in JavaScript
<meta http-equiv="refresh" content="1"> in HTML (where 1 = 1 second).
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Generate random 5 characters string
I want to create exact 5 random characters string with least possibility of getting duplicated. What would be the best way to do it? Thanks.
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Override Java System.currentTimeMillis for testing time sensitive code
...factor that legacy code to use a replaceable clock. Ideally that should be done with dependency injection, but even if you used a replaceable singleton you would gain testability.
This could almost be automated with search and replace for the singleton version:
Replace Calendar.getInstance() with...
Passing a dictionary to a function as keyword parameters
...is is great, just used it with argparse/__dict__ to make it really easy to do command line argument parsing directly into options for a class object.
– Horus
Jun 14 '12 at 3:47
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