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KnockOutJS - Multiple ViewModels in a single View

... Justin 6,10133 gold badges3030 silver badges5050 bronze badges answered Feb 15 '12 at 13:59 John PapaJohn Papa 19.5k44 gold...
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bash assign default value

... Not just shorter, but less error-prone: VERY_LONG_VARIABLE_NAME=${VERY_LOGN_VARIABLE_NAME:-hello}. Oops. – chepner Aug 17 '14 at 13:40 ...
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Difference between abstract class and interface in Python

...xpected to supply.""" def aMethod( self ): raise NotImplementedError( "Should have implemented this" ) Because Python doesn't have (and doesn't need) a formal Interface contract, the Java-style distinction between abstraction and interface doesn't exist. If someone goes through the ef...
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GCM with PHP (Google Cloud Messaging)

...Actually send the request $result = curl_exec($ch); // Handle errors if (curl_errno($ch)) { echo 'GCM error: ' . curl_error($ch); } // Close curl handle curl_close($ch); // Debug GCM response echo $result; } ...
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Quicksort vs heapsort

Both quicksort and heapsort do in-place sorting. Which is better? What are the applications and cases in which either is preferred? ...
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What is a “surrogate pair” in Java?

I was reading the documentation for StringBuffer , in particular the reverse() method. That documentation mentions something about surrogate pairs . What is a surrogate pair in this context? And what are low and high surrogates? ...
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Single Line Nested For Loops

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What is Android keystore file, and what is it used for?

This is a general question, but particularly I am interested in it's use for Android. What is a keystore file, and what is it used for? ...
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How can I keep Bootstrap popovers alive while being hovered?

... I am triggering it on mouseover of a button. I want to keep this popover alive while the popover itself is being hovered, but it disappears as soon as the user stops hovering over the button. How can I do this? ...
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C++ unordered_map using a custom class type as the key

...I put this at the bottom of my Key.cpp file but I am getting the following error: Error 57 error C2440: 'type cast' : cannot convert from 'const Key' to 'size_t' c:\program files (x86)\microsoft visual studio 10.0\vc\include\xfunctional. I am guessing that the compiler is not finding my hash method...