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How can I get all constants of a type by reflection?

...; FieldInfo[] fieldInfos = type.GetFields( // Gets all public and static fields BindingFlags.Public | BindingFlags.Static | // This tells it to get the fields from all base types as well BindingFlags.FlattenHierarchy); // Go through the list and only pick...
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How to format a duration in java? (e.g format H:MM:SS)

... If you're using a version of Java prior to 8... you can use Joda Time and PeriodFormatter. If you've really got a duration (i.e. an elapsed amount of time, with no reference to a calendar system) then you should probably be using Duration for the most part - you can then call toPeriod (specifyi...
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Can table columns with a Foreign Key be NULL?

... you can clearly indicate that this row is not to be used as a normal row, and can use the row as a way of providing a sort of dynamic default value for other rows. – Ouroborus Feb 21 '17 at 17:57 ...
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Can jQuery read/write cookies to a browser?

...le example: I want to have some items on a page (like divs or table rows), and I want to let the user click on them to select them. That seems easy enough in jQuery. To save which items a user clicks on with no server-side post backs, I was thinking a cookie would be a simple way to get this done. ...
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Find out time it took for a python script to complete execution

... Do you execute the script from the command line on Linux or UNIX? In that case, you could just use time ./script.py share | improve this answer | ...
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How to detect UI thread on Android?

Is there a robust way to detect if Thread.currentThread() is the Android system UI thread in an application? I would like to put some asserts in my model code that asserts that only one thread ( eg the ui thread) accesses my state, to assure that no kind of synchronization is necessary. ...
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How to get a vertical geom_vline to an x-axis of class date?

Even though I found Hadley's post in the google group on POSIXct and geom_vline , I could not get it done. I have a time series from and would like to draw a vertical line for years 1998, 2005 and 2010 for example. I tried with ggplot and qplot syntax, but still I either see no vertical line ...
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Convert character to ASCII code in JavaScript

... @MathiasBynens: and fortunately this is documented: developer.mozilla.org/en/JavaScript/Reference/Global_Objects/…. "if it is not a number, it defaults to 0" – tokland Nov 15 '11 at 19:46 ...
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jQuery UI DatePicker - Change Date Format

I am using the UI DatePicker from jQuery UI as the stand alone picker. I have this code: 28 Answers ...
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How to get a value from a cell of a dataframe?

...ith only one row, then access the first (only) row as a Series using iloc, and then the value using the column name: In [3]: sub_df Out[3]: A B 2 -0.133653 -0.030854 In [4]: sub_df.iloc[0] Out[4]: A -0.133653 B -0.030854 Name: 2, dtype: float64 In [5]: sub_df.iloc[0]['A'] Ou...