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Determining type of an object in ruby
... to how String behaves. object.respond_to?(:to_s) would be a better way to test that the object in question does what you want.
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Android static object lifecycle
...uld any of the above three happen the static will lose its value.
You can test this with a few lines of code:
print the uninitialized static in onCreate of your activity -> should print null
initialize the static. print it -> value would be non null
Hit the back button and go to home screen...
Custom attributes in styles.xml
...d to point out that @vince's explanation may not be entirely accurate.
To test the hypothesis that the name attribute of the declare-styleable matching the name of the custom view class is allowing us to access the custom attribute without a namespace I changed the name of the declare-styleable (th...
Why use Ruby's attr_accessor, attr_reader and attr_writer?
...kes 94% of the time that the manually defined accessor does. In all of my tests, however, accessors are fast: an accessor takes about 820 nanoseconds (Ruby 1.8.7) or 440 nanoseconds (Ruby 1.9). At those speeds, you'll need to call an accessor hundreds of millions of times for the performance bene...
Compiling dynamic HTML strings from database
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@AlexandrosSpyropoulos I just test and see that my code runs okay even with 1.2.12. I think you probably missed the declaration <div dynamic="html"> in the HTML? (With that declaration, $watch watches the 'html' property in scope, not the actual HTM...
event Action vs event EventHandler
...ed when we're talking about event Action<T> vs EventHandler. Also, I tested replacing public static event FireEvent OnFireEvent; with public static event Action<int> OnFireEvent; and the other one too and the same behavior happens. What did I do wrong ?
– Jeremy F.
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Is the order of iterating through std::map known (and guaranteed by the standard)?
...ill be no repeats of keys that are "equal"), and equality is determined by testing on any two keys A and B, that if key A is not less than key B, and B is not less than A, then key A is equal to key B.
That being said, you cannot properly sort the elements of a std::map if the weak-ordering for tha...
Java - No enclosing instance of type Foo is accessible
...would be problematic, since there wouldn't be an obvious enormous value to test 31 against it. An instance h of the Hello outer class is necessary to provide this h.enormous value:
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Hello h = new Hello(30);
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Thing t = h.new Thing(31);
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Because it doesn't mean a Thing if it doesn't have a...
Java generics type erasure: when and what happens?
...@will824: I've massively improved the answer and I've added a link to some test cases. Cheers :)
– Richard Gomes
Jul 5 '12 at 21:26
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How to get the difference between two arrays of objects in JavaScript
...ean (true or false value.) In this case, if we separate out the notion of testing for equality from the rest of the code by requiring the user to pass the equality check as a function, we can make a straightforward generic algorithm.
– Scott Sauyet
Feb 24 '14 ...