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Converting NSString to NSDate (and back again)

...String = @"01-02-2010"; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"dd-MM-yyyy"]; NSDate *dateFromString = [dateFormatter dateFromString:dateString]; NSDate convert to NSString: NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [d...
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Easy idiomatic way to define Ordering for a simple case class

...[...] to Ordered[TupleN[...]] provided an implicit Ordering[TN] exists for all elements T1, ..., TN of the tuple, which should always be the case because it makes no sense to sort on a data type with no Ordering. The implicit ordering for Tuples is your go-to for any sorting scenario involving a co...
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Creating a JSON response using Django and Python

...JSON content. import json from django.http import HttpResponse response_data = {} response_data['result'] = 'error' response_data['message'] = 'Some error message' Pre-Django 1.7 you'd return it like this: return HttpResponse(json.dumps(response_data), content_type="application/json") For D...
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Handling specific errors in JavaScript (think exceptions)

...they also explain how to make it conform, though it's not as succint. Basically same as above, but using instanceOf. Check here – Bart Oct 20 '15 at 8:58 ...
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Recursive lambda functions in C++11

... in MSVC, where I have experience with them), it's just that they aren't really compatible with type inference. share | improve this answer | follow | ...
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How should I structure a Python package that contains Cython code

...od relies on the fact that building a .pyx file with Cython.Distutils.build_ext (at least with Cython version 0.14) always seems to create a .c file in the same directory as the source .pyx file. Here is a cut-down version of setup.py which I hope shows the essentials: from distutils.core import s...
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How To Change DataType of a DataColumn in a DataTable?

... of the column after the DataTable is filled, you can change it after you call FillSchema, but before you call Fill. For example, say the 3rd column is the one you want to convert from double to Int32, you could use: adapter.FillSchema(table, SchemaType.Source); table.Columns[2].DataType = typeof (...
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One SVN repository or many?

... its own tags, trunk and branches. If one gets too big or I need to physically isolate a customer's code for their comfort, I can quickly and easily create a new repository. I recently consulted with a relatively large firm on migrating multiple source code control systems to Subversion. They have...
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How do I add a path to PYTHONPATH in virtualenv

... You can usually avoid having to do anything with PYTHONPATH by using .pth files. Just put a file with a .pth extension (any basename works) in your virtualenv's site-packages folder, e.g. lib\python2.7\site-packages, with the absolute p...
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Rename multiple files based on pattern in Unix

... Not present on all *nix systems. Not on Max OS X for one, and no package in fink to get it. Haven't looked at MacPorts. – dmckee --- ex-moderator kitten Jul 6 '09 at 16:07 ...