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switch() statement usage

...ue again. It seems switch is generally faster than if statements. So that, and the fact that the code is shorter/neater with a switch statement leans in favor of switch: # Simplified to only measure the overhead of switch vs if test1 <- function(type) { switch(type, mean = 1, m...
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Bordered UITextView

... I didn't think it really needed much explaining, view is the UITextView, and the code goes wherever you'd set up the view (awakeFromNib or viewDidLoad are two possible places). Since there was no code given there's no way to give good context in response. – Kendall Helmstett...
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Why can't I use the 'await' operator within the body of a lock statement?

...yourself is a testament to that fact. Rather, it is an incredibly bad idea and so we don't allow it, so as to protect you from making this mistake. call to Monitor.Exit within ExitDisposable.Dispose seems to block indefinitely (most of the time) causing deadlocks as other threads attempt to acqu...
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.net localhost website consistently making get arterySignalR/poll?transport=longPolling&connectionTo

I created a new VS 2013 project and viewed the default.aspx page with the Firefox browser. When I check the net calls it has made, I see it making constant calls to: ...
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Why use double indirection? or Why use pointers to pointers?

... Yes, and if you ever lose track of one of your pointers, here's a pointer: pointerpointer.com – Andrew Cheong Aug 21 at 0:50 ...
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The way to check a HDFS directory's size?

... Prior to 0.20.203, and officially deprecated in 2.6.0: hadoop fs -dus [directory] Since 0.20.203 (dead link) 1.0.4 and still compatible through 2.6.0: hdfs dfs -du [-s] [-h] URI [URI …] You can also run hadoop fs -help for more info and...
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VIM Replace word with contents of paste buffer?

I need to do a bunch of word replacements in a file and want to do it with a vi command, not an EX command such as :%s///g . I know that this is the typical way one replaces the word at the current cursor position: cw<text><esc> but is there a way to do this with the contents of the u...
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How do I filter an array with AngularJS and use a property of the filtered object as the ng-model at

If I have an array of objects, and I want to bind the Angular model to a property of one of the elements based on a filter, how do I do that? I can explain better with a concrete example: ...
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What does the CSS rule “clear: both” do?

...th; OR what does clear: both; exactly do... I'll keep this answer simple, and to the point, and will explain to you graphically why clear: both; is required or what it does... Generally designers float the elements, left or to the right, which creates an empty space on the other side which allows ...
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Meaning of Git checkout double dashes

...t is the meaning of the double dashes before the file name in this git command? 3 Answers ...