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Android DialogFragment vs Dialog
Google recommends that we use DialogFragment instead of a simple Dialog by using Fragments API , but it is absurd to use an isolated DialogFragment for a simple Yes-No confirmation message box. What is the best practice in this case?
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What is the overhead of creating a new HttpClient per call in a WebAPI client?
What should be the HttpClient lifetime of a WebAPI client?
Is it better to have one instance of the HttpClient for multiple calls?
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What are commit-ish and tree-ish in Git?
...te list of commit-ish and tree-ish identifiers (from the Git
revisions documentation):
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| Commit-ish/Tree-ish | Examples
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| 1. <sha1&g...
Empty arrays seem to equal true and false at the same time
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add a comment
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63
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SQL Server dynamic PIVOT query?
I've been tasked with coming up with a means of translating the following data:
7 Answers
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How to run functions in parallel?
...ting'
for i in xrange(10000000): pass
print 'func2: finishing'
if __name__ == '__main__':
p1 = Process(target=func1)
p1.start()
p2 = Process(target=func2)
p2.start()
p1.join()
p2.join()
The mechanics of starting/joining child processes can easily be encapsulated into a function al...
When to use a “has_many :through” relation in Rails?
... Group.
If you wanted to have users belong to groups, then you could do something like this:
class Group < ActiveRecord::Base
has_many :users
end
class User < ActiveRecord::Base
belongs_to :group
end
What if you wanted to track additional metadata around the association? For example,...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
You can use the function tz_localize to make a Timestamp or DateTimeIndex timezone aware, but how can you do the opposite: how can you convert a timezone aware Timestamp to a naive one, while preserving its timezone?
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Sorting an IList in C#
So I came across an interesting problem today. We have a WCF web service that returns an IList. Not really a big deal until I wanted to sort it.
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How is the default submit button on an HTML form determined?
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If you submit the form via Javascript (i.e. formElement.submit() or anything equivalent), then none of the submit buttons are considered successful and none of their values are included in the submitted data. (Note that if you submit the form by using submitElement.click...