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JavaScript: What are .extend and .prototype used for?
... .extend and .prototype in third party libraries I am using. I thought it had to do with the Prototype javascript library, but I am beginning to think that is not the case. What are these used for?
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How to find topmost view controller on iOS
...ilbur VandrsmithWilbur Vandrsmith
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Executing injected by innerHTML after AJAX call
...esponse. You then set the src attribute of your script tag and voila, it loads and executes the external script.
This other StackOverflow post may also be helpful to you: Can scripts be inserted with innerHTML?.
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Why does the default parameterless constructor go away when you create one with parameters
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There's no reason that the compiler couldn't add the constructor if you've added your own - the compiler could do pretty much whatever it wants! However, you have to look at what makes most sense:
If I haven't defined any constructor for a non-static class, I most li...
Drawing text to with @font-face does not work at the first time
When I draw a text in a canvas with a typeface that is loaded via @font-face, the text doesn't show correctly. It doesn't show at all (in Chrome 13 and Firefox 5), or the typeface is wrong (Opera 11). This type of unexpected behavior occurs only at the first drawing with the typeface. After then eve...
Is there a Python equivalent of the C# null-coalescing operator?
...rator.
Note that the or operator does not return only True or False. Instead, it returns the first operand if the first operand evaluates to true, and it returns the second operand if the first operand evaluates to false.
In this case, the expression x or y returns x if it is True or evaluates to ...
Android: java.lang.SecurityException: Permission Denial: start Intent
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You have to add android:exported="true" in the manifest file in the activity you are trying to start.
From the android:exported documentation:
android:exported
Whether or not the activity can be launched by components of other...
How to resolve “Error: bad index – Fatal: index file corrupt” when using Git
After git init , I added and committed a few files, made some changes, added and committed. Set up the git daemon (running under Cygwin on WinXP) and cloned the repository once.
Now, I get this error with the cloned repository:
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How can HTML5 “replace” Flash? [closed]
A topic of debate that's seen a resurgence since the unveiling of the iPad is the issue of Flash versus HTML5. There are those that suggest that HTML5 will one day supplant/replace Adobe Flash.
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Virtual/pure virtual explained
...virtual method, the version defined in the derived class will be used instead of the version defined in the base class.
This is in contrast to non-virtual functions, which can still be overridden in a derived class, but the "new" version will only be used by the derived class and below, but will n...