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When to use nested classes and classes nested in modules?
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Other OOP languages have inner classes which cannot be instantiated without being bound to an upper level class. For instance, in Java,
class Car {
class Wheel { }
}
only methods in the Car class can create Wheels.
Ruby doesn’t have that behaviour.
In Ruby,
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How can I get query string values in JavaScript?
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Update: Sep-2018
You can use URLSearchParams which is simple and has decent (but not complete) browser support.
const urlParams = new URLSearchParams(window.location.search);
const myParam = urlParams.get('myParam');
PS
Unfortunately URLSearchPa...
Default template arguments for function templates
Why are default template arguments only allowed on class templates? Why can't we define a default type in a member function template? For example:
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__lt__ instead of __cmp__
...r
def __le__(self, other):
return not other<self
Now your class can define just __lt__ and multiply inherit from ComparableMixin (after whatever other bases it needs, if any). A class decorator would be quite similar, just inserting similar functions as attributes of the new class it's de...
.NET NewtonSoft JSON deserialize map to a different property name
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can i use two JsonProperty for one filed?
– Ali Yousefi
May 11 '15 at 19:56
2
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How do I create a right click context menu in Java Swing?
...ntext menu by instantiating a new JMenu on right click and setting its location to that of the mouse's position... Is there a better way?
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Is Fortran easier to optimize than C for heavy calculations?
From time to time I read that Fortran is or can be faster then C for heavy calculations. Is that really true? I must admit that I hardly know Fortran, but the Fortran code I have seen so far did not show that the language has features that C doesn't have.
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Fragment onCreateView and onActivityCreated called twice
...c void onTabReselected(Tab tab, FragmentTransaction ft) {
}
}
As you can see it's pretty much like the Android sample, apart from not detaching in the constructor, and using replace instead of add.
After much headscratching and trial-and-error I found that finding the fragment in the construc...
How many Activities vs Fragments?
...the pattern as suggested.
I also agree that it is not a good idea to duplicate your app's logic across many Activities (see DRY Principle on wikipedia).
I prefer the pattern used by the ActionBarSherlock Fragments Demo app (download here and source code here). The demo that most closely matches ...
How to show all privileges from a user in oracle?
Can someone please tell me how to show all privileges/rules from a specific user in the sql-console?
6 Answers
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