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Left Align Cells in UICollectionView

...ep their size, add the following at the top of the closure in the forEach call: guard layoutAttribute.representedElementCategory == .cell else { return } Objective-C: - (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect { NSArray *attributes = [super layoutAttributesForElementsI...
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MongoDB SELECT COUNT GROUP BY

... I need some extra operation based on the result of aggregate function. Finally I've found some solution for aggregate function and the operation based on the result in MongoDB. I've a collection Request with field request, source, status, requestDate. Single Field Group By & Count: db.Request...
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How do I get only directories using Get-ChildItem?

I'm using PowerShell 2.0 and I want to pipe out all the subdirectories of a certain path. The following command outputs all files and directories, but I can't figure out how to filter out the files. ...
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What is the proper way to re-throw an exception in C#? [duplicate]

... ends on that statement and not at the real source of the exception. Basically, it should be deemed a criminal offense to use "throw ex". share | improve this answer | follo...
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Python memory usage of numpy arrays

... The field nbytes will give you the size in bytes of all the elements of the array in a numpy.array: size_in_bytes = my_numpy_array.nbytes Notice that this does not measures "non-element attributes of the array object" so the actual size in bytes can be a few bytes larger th...
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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type

...'Modified'. Before changing the state, the state is set to 'Detached' but calling Attach() does throw the same error. I'm using EF6. ...
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Sequence contains no matching element

...g about the others anyway. On the other hand, it looks like you might actually be better off with a join here in the first place. If you didn't care that it would do all matches (rather than just the first) you could use: var query = from target in _lstAcl.Documents join source in _dsA...
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How to assert two list contain the same elements in Python? [duplicate]

... Thanks. But downright misleading, I would have called it! – Wild Pottok Oct 22 '18 at 16:18 ...
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What is the reason for having '//' in Python? [duplicate]

... I actually like this style better... I can remember in atleast one language I've used (VB?) the differentiating factor was / vs \ ... but I could never remember which was which! – Matthew Scharley ...
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What is the difference between partitioning and bucketing a table in Hive ?

... Partitioning data is often used for distributing load horizontally, this has performance benefit, and helps in organizing data in a logical fashion. Example: if we are dealing with a large employee table and often run queries with WHERE clauses that restrict the results to a particular ...