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What is ViewModel in MVC?

...y represents the data that you want to use, nothing else. You can imagine all the unnecessary code and validation if you have a domain model with 30 properties and you only want to update a single value. Given this scenario you would only have this one value/property in the view model and not all ...
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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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Programmatically open Maps app in iOS 6

...ordinate2DMake(16.775, -3.009); MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:coordinate addressDictionary:nil]; MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark]; [mapItem setName:@"My Place"]; // Pas...
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Functional, Declarative, and Imperative Programming [closed]

...ve expression is the referential transparency (RT) of its sub-expressions. All other attributes are either shared between both types of expressions, or derived from the RT. A 100% declarative language (i.e. one in which every possible expression is RT) does not (among other RT requirements) allow th...
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How to compile without warnings being treated as errors?

... You can make all warnings being treated as such using -Wno-error. You can make specific warnings being treated as such by using -Wno-error=<warning name> where <warning name> is the name of the warning you don't want treated a...
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How to fix “Attempted relative import in non-package” even with __init__.py

...ry to execute the above shell command, the fact that you need __init__.pys all the way down, and the __package__-modifying trickery (described below by BrenBarn) needed to allow these imports for executable scripts (e.g. when using a shebang and doing ./my_script.py at the Unix shell) would all be u...
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Do you put unit tests in same project or another project?

...n affect build processes like automated or continuous build. I don't really know of any pros. Having an extra project (or 10) isn't a con. Edit: More Info On Build and Shipping I would further recommend that any automated build process place production and unit tests into different locations....
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How to disable HTML links

... solution if you need to support IE (and you can change your HTML) but... All this said please note that pointer-events disables only...pointer events. Links will still be navigable through keyboard then you also need to apply one of the other techniques described here. Focus In conjunction with ...
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Open document with default OS application in Python, both in Windows and Mac OS

... open a document using its default application in Windows and Mac OS. Basically, I want to do the same thing that happens when you double-click on the document icon in Explorer or Finder. What is the best way to do this in Python? ...
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Can every recursion be converted into iteration?

...sive form. Unless there's a compelling reason, you probably shouldn't (manually) convert these functions to an explicitly iterative algorithm. Your computer will handle that job correctly. I can see one compelling reason. Suppose you've a prototype system in a super-high level language like [donnin...