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Most efficient way to cast List to List

...seconds after their creation. The solution to this problem is, of course, down-casting the collection. Here is the best way to do it: static <T,U extends T> List<T> downCastList( List<U> list ) { return castList( list ); } Which brings us to the castList() function: static...
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Why are global variables evil? [closed]

... cache[args] = ... This makes globals' manipulations easier to track down. share | improve this answer | follow | ...
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Simple way to calculate median with MySQL

... @rob can you help edit please? Or should I just bow down to the velcrow solution? (not actually sure how to defer to another solution) Thanks, Jacob – TheJacobTaylor Jun 18 '12 at 23:50 ...
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Can an html element have multiple ids?

... What is illegal about this answer? Can someone explain the down vote? – tpower Oct 12 '08 at 10:16 20 ...
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T-SQL: Using a CASE in an UPDATE statement to update certain columns depending on a condition

...005 and it works perfectly as shown. I would sure like to know why it was down voted and an example showing the NULL value getting updated, because in my test above, the null value is not updated. I've always thought that the simplest answer is the best and if I am dealing with a database with mil...
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Databinding an enum property to a ComboBox in WPF

...cepted but now deleted answer provided by ageektrapped I created a slimmed down version without some of the more advanced features. All the code is included here to allow you to copy-paste it and not get blocked by link-rot. I use the System.ComponentModel.DescriptionAttribute which really is inten...
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Convert from enum ordinal to enum type

... the enum ordering in future, which may not be obvious to code maintainers down the line. Why not encode the enum using myEnumValue.name() (and decode via ReportTypeEnum.valueOf(s)) instead? share | ...
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Visibility of global variables in imported modules

...ays to solve this, depending on your actual use case. Before even going down this path, ask yourself whether this really needs to be global. Maybe you really want a class, with f as an instance method, rather than just a free function? Then you could do something like this: import module1 thingy...
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Convert Django Model object to dict with all of the fields intact

...o_dict method like @karthiker suggested, then that just boils this problem down to a sets problem. >>># Returns a set of all keys excluding editable = False keys >>>dict = model_to_dict(instance) >>>dict {u'id': 1L, 'reference1': 1L, 'reference2': [1L], 'value': 1} &gt...
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examining history of deleted file

...poster_funk.incl.php' path not found See @Bert Huijben's response further down this thread for a working solution. – Keith Palmer Jr. Jan 8 '10 at 15:55 2 ...