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What is the difference between MVC and MVVM? [closed]

...t. For ASP.Net, MVVM is used to two-way bind data within views. This is usually a client-side implementation (e.g. using Knockout.js). MVC on the other hand is a way of separating concerns on the server-side. For Silverlight and WPF, the MVVM pattern is more encompassing and can appear to act as a r...
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Python division

...-100 and was having problems only to notice that even with no variables at all, this does not evaluate the way I would expect it to: ...
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How to Rotate a UIImage 90 degrees?

...nt to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally intended to resize a UIImage to do this. I set a target size as the current size of the UIImage but I get an error: ...
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What is the correct way to represent null XML elements?

...l is the correct way to represent a value such that: When the DOM Level 2 call getElementValue() is issued, the NULL value is returned. xsi:nil is also used to indicate a valid element with no content even if that elements content type normally doesn't allow empty elements. If an empty tag is used,...
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How do I detect whether a Python variable is a function?

... If this is for Python 2.x or for Python 3.2+, you can also use callable(). It used to be deprecated, but is now undeprecated, so you can use it again. You can read the discussion here: http://bugs.python.org/issue10518. You can do this with: callable(obj) If this is for Python 3.x but ...
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Android Respond To URL in Intent

...oesnt work for me. Can you please give an example-Link that would open the Application. – Pascal Klein Apr 1 '11 at 14:39 7 ...
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Getting Started with Windows Phone 7 [closed]

...k to developers (like the guy who made Evernote) about how they made their apps. share | improve this answer | follow | ...
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How to programmatically turn off WiFi on Android device? [duplicate]

... after pressing the "Turn off the Screen" button. There is a need for this app for my tablet because sometimes I just forget to turn off the WiFi and this discharges the battery very fast. It lives 10x+ times less than I would without WiFi. Is there any solution available as .apk? Can I track when ...
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Is it fine if first response is private with AppCache (Symfony2)?

...th private, nocache must validate headers. I solved problem this way. In app.php, before I send response to user ($respond->send), I have overwritten the cache control header to blank and set cache headers to public and max age(some value). //code snippet from app.php $response = $kernel-...
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NSInvalidUnarchiveOperationException: Could not instantiate class named NSLayoutConstraint

I am very new to this. I followed Apple's tutorial step by step for the iPhone project "HelloWorld". I ran it in the iPhone 5.0 simulator and it crashed: ...