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UIButton Long Press Event

... UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)]; [self.button addGestureRecognizer:longPress]; [longPress release]; And then implement the method that handles the gesture - (void)longPress:(UILongPressGestureRecog...
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Possible to iterate backwards through a foreach?

...g), you cannot do it as efficiently as using a for loop. Edit: Which generally means, when you are able to use a for loop, it's likely the correct method for this task. Plus, for as much as foreach is implemented in-order, the construct itself is built for expressing loops that are independent of e...
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What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos

Ive got a bunch of rectangular objects which I need to pack into the smallest space possible (the dimensions of this space should be powers of two). ...
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“No such file or directory” error when executing a binary

I was installing a binary Linux application on Ubuntu 9.10 x86_64. The app shipped with an old version of gzip (1.2.4), that was compiled for a much older kernel: ...
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Comparing two dataframes and getting the differences

...df2, works only for dataframes with identical rows and columns. In fact, all dataframes axes are compared with _indexed_same method, and exception is raised if differences found, even in columns/indices order. If I got you right, you want not to find changes, but symmetric difference. For that, o...
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What happened to console.log in IE8?

... Even better for fallback is this: var alertFallback = true; if (typeof console === "undefined" || typeof console.log === "undefined") { console = {}; if (alertFallback) { console.log = function(msg) { ...
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GitHub pages are not updating

..., but the new article isn't showing up there. When I execute the server locally, a post lives at localhost:4000/posts/the-price-of-inconsistent-code/ . However, when I go to http://maltzj.github.io/posts/the-price-of-inconsistent-code I get a 404. I also added a new file which should live at htt...
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How do I expand the output display to see more columns of a pandas DataFrame?

...: None] [currently: None] : float or None if set to a float value, all float values smaller then the given threshold will be displayed as exactly 0 by repr and friends. display.colheader_justify: [default: right] [currently: right] : 'left'/'right' Controls the justification ...
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How do I space out the child elements of a StackPanel?

...fine the type (e.g. TextBox)? If I try this using FrameworkElement so that all children are spaced, it has no effect. – Jack Ukleja Jan 28 '14 at 18:48 5 ...
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Adding HTML entities using CSS content

... Update: PointedEars mentions that the correct stand in for   in all css situations would be '\a0 ' implying that the space is a terminator to the hex string and is absorbed by the escaped sequence. He further pointed out this authoritative description which sounds like a good solution to...