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Sorting data based on second column of a file
...yourfile
-n, --numeric-sort compare according to string numerical value
For example:
$ cat ages.txt
Bob 12
Jane 48
Mark 3
Tashi 54
$ sort -k2 -n ages.txt
Mark 3
Bob 12
Jane 48
Tashi 54
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Entity Framework Join 3 Tables
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Thank you very much for the method; works clear but I would like to see the answer as I asked, thanks a lot again.
– Erçin Dedeoğlu
Jan 10 '14 at 18:46
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Breakpoints are crossed out, how can I make them valid?
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There is a menu entry you have discovered for yourself that toggles the skipping of all breakpoints. There is also an icon for this in the "Breakpoints" View, and there may be a hot-key defined as well, all of which you may have triggered by accident.
Take a look at...
How does setting baselineAligned to false improve performance in LinearLayout?
...e a warning and said to set android:baselineAligned to false to improve performance in ListView.
3 Answers
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What is the list of valid @SuppressWarnings warning names in Java?
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It depends on your IDE or compiler.
Here is a list for Eclipse Galileo:
all to suppress all warnings
boxing to suppress warnings relative to boxing/unboxing operations
cast to suppress warnings relative to cast operations
dep-ann to suppress warnings relative to ...
what is the difference between sendStickyBroadcast and sendBroadcast in Android
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Here is what the Android SDK says about sendStickyBroadcast():
Perform a sendBroadcast(Intent) that
is "sticky," meaning the Intent you
are sending stays around after the
broadcast is complete, so that others
can quickly retrieve that data through
the return value of
registerRec...
How to convert a boolean array to an int array
...not even be necessary to do this, depending on what you're using the array for. Bool will be autopromoted to int in many cases, so you can add it to int arrays without having to explicitly convert it:
>>> x
array([ True, False, True], dtype=bool)
>>> x + [1, 2, 3]
array([2, 2, 4...
Comparing Timer with DispatcherTimer
what is a difference between System.Windows.Forms.Timer() and System.Windows.Threading.DispatcherTimer() ? In which cases, we should use them? any best practices ?
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What is the difference between `after_create` and `after_save` and when to use which?
...e()
Works fine when you have to save models that do not save very often.
For this particular example of changing records frequently it would be advisable to use
after_commit()
make sure that the model is saved in the database before the action is executed
after_commit :calculate_credit_scor...
Python Mocking a function from an imported module
... use patch as a decorator or context manager is specific to the use case. For instance you can use patch as a decorator to mock a value for all tests in an xunit or pytest class while in other cases its useful to have the fine grained control afforded by the context manager.
–...