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How to delete a specific line in a file?
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First, open the file and get all your lines from the file. Then reopen the file in write mode ...
How to extract the file name from URI returned from Intent.ACTION_GET_CONTENT?
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answered Jul 28 '14 at 22:17
Stefan HausteinStefan Haustein
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How do I mock a service that returns promise in AngularJS Jasmine unit test?
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edited May 28 '15 at 11:51
sarin
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How to combine two or more querysets in a Django view?
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key=lambda instance: instance.date_created)
If you're using Python 2.4 or later, you can use attrgetter instead of a lambda. I remember reading about it being faster, but I didn't see a noticeable speed difference for a million item list.
from operator import attrgetter
result_list = sorted...
How to calculate age (in years) based on Date of Birth and getDate()
... table listing people along with their date of birth (currently a nvarchar(25))
34 Answers
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Determine if variable is defined in Python [duplicate]
...t always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby.
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PostgreSQL: How to pass parameters from command line?
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You can use the -v construct e.g
psql -v v1=12 -v v2="'Hello World'" -v v3="'2010-11-12'"
and then refer to the variables in sql as :v1, :v2 etc
select * from table_1 where id = :v1;
Please pay attention on how we pass string/date value using two quotes " '...' "
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UILabel is not auto-shrinking text to fit label size
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edited Jun 20 at 9:12
Community♦
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answered Oct 16 '12 at 20:08
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