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How to cast an object in Objective-C

Is there a way to cast objects in objective-c much like the way objects are cast in VB.NET? 5 Answers ...
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Determine distance from the top of a div to top of window with javascript

How do I determine the distance between the very top of a div to the top of the current screen? I just want the pixel distance to the top of the current screen, not the top of the document. I've tried a few things like .offset() and .offsetHeight , but I just can't wrap my brain around it. Tha...
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ggplot2 keep unused levels barplot

I want to plot unused levels (that is, levels where the count is 0) in my bar-plot, however, unused levels are dropped and I cannot figure out how to keep them ...
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Switch statement for greater-than/less-than

so I want to use a switch statement like this: 10 Answers 10 ...
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Split an NSString to access one particular piece

I have a string like this: @"10/04/2011" and I want to save only the "10" in another string. How can I do that? 7 Answers...
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Does Ruby have a string.startswith(“abc”) built in method?

Does Ruby have a some_string.starts_with("abc") method that's built in? 4 Answers 4 ...
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Remove border radius from Select tag in bootstrap 3

This seems like a trivial problem, but I can't figure it out. 6 Answers 6 ...
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Javascript split regex question

hello I am trying what I thought would be a rather easy regex in Javascript but is giving me lots of trouble. I want the ability to split a date via javascript splitting either by a '-','.','/' and ' '. ...
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How can you determine a point is between two other points on a line segment?

Let's say you have a two dimensional plane with 2 points (called a and b) on it represented by an x integer and a y integer for each point. ...
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Placing an image to the top right corner - CSS

I need to display an image on the top-right corner of a div (the image is a "diagonal" ribbon) but keeping the current text contained in an internal div, like stuck to the top of it. ...