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Java array reflection: isArray vs. instanceof
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I recently ran into an issue upgrading a Groovy application from JDK 5 to JDK 6. Using isArray() failed in JDK6:
MissingMethodException:
No signature of sun.reflect.generics.reflectiveObjects.GenericArrayTypeImpl.isArray() ...
Changing to instanceof Object[] fixed this.
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How to customize the back button on ActionBar
...e the action bar's background, logo image and text color using suggestions from these:
Android: How to change the ActionBar "Home" Icon to be something other than the app icon?
ActionBar text color
ActionBar background image
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Is there a W3C valid way to disable autocomplete in a HTML form?
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Here is a good article from the MDC which explains the problems (and solutions) to form autocompletion.
Microsoft has published something similar here, as well.
To be honest, if this is something important to your users, 'breaking' standards in th...
What does the “__block” keyword mean?
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From the Block Language Spec:
In addition to the new Block type we also introduce a new storage qualifier, __block, for local variables. [testme: a __block declaration within a block literal] The __block storage qualifier i...
How to avoid “RuntimeError: dictionary changed size during iteration” error?
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From all the answers here, for me this one is the simplest and pythonic.
– Abhishek Upadhyaya
Aug 26 at 6:52
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How can I scroll to a specific location on the page using jquery?
...lling, you can find it here:
http://plugins.jquery.com/scrollTo/
Excerpts from Documentation:
$('div.pane').scrollTo(...);//all divs w/class pane
or
$.scrollTo(...);//the plugin will take care of this
Custom jQuery function for scrolling
you can use a very lightweight approach by defining y...
Passing an integer by reference in Python
...alue because then you're actually creating a new object (which is distinct from the old one) and giving it the name that the old object had in the local namespace.
Usually the workaround is to simply return the object that you want:
def multiply_by_2(x):
return 2*x
x = 1
x = multiply_by_2(x)
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Separators for Navigation
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Using the :before pseudo selector prevents it from appearing after the last element.
– jrue
Dec 21 '12 at 3:06
3
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Fully custom validation error message with Rails
... HUMANIZED_ATTRIBUTES[attr.to_sym] || super
end
end
The above code is from here
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onBitmapLoaded of Target object not called on first load
...private Target mTarget = new Target() {...};
public void getPointMarkerFromUrl(final String url, final OnBitmapDescriptorRetrievedListener listener) {
Picasso.with(context)
.load(url)
.resize(maxSize, maxSize)
.into(mTarget);
}
}
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