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Razor view engine, how to enter preprocessor(#if debug)

... This is built in to HttpContext: @if (HttpContext.Current.IsDebuggingEnabled) { // Means that debug="true" in Web.config } IMO, this makes more sense than conditional compilation for views and comes in handy for some testing scenarios. (S...
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How to use single storyboard uiviewcontroller for multiple subclass

...do what you propose because there are no initializers in UIStoryboard that allow overriding the view controller associated with the storyboard as defined in the object details in the storyboard on initialization. It's at initialization that all the UI elements in the stoaryboard are linked up to th...
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Modular multiplicative inverse function in Python

... is someone who has implemented some number theory capabilities in Python: http://www.math.umbc.edu/~campbell/Computers/Python/numbthy.html Here is an example done at the prompt: m = 1000000007 x = 1234567 y = pow(x,m-2,m) y 989145189L x*y 1221166008548163L x*y % m 1L ...
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Postgresql aggregate array

... Use array_agg: http://www.sqlfiddle.com/#!1/5099e/1 SELECT s.name, array_agg(g.Mark) as marks FROM student s LEFT JOIN Grade g ON g.Student_id = s.Id GROUP BY s.Id By the way, if you are using Postgres 9.1, you don't need to rep...
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private[this] vs private

...rotected over public doesn't apply. Use private[this] where performance really matters (since you'll get direct field access instead of methods this way). Otherwise, just settle on one style so people don't need to figure out why this property is private and that one is private[this]. ...
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Xcode/Simulator: How to run older iOS version?

... As for weak linking, will this still install on an older device? I tried a while ago and came to the conclusion (as well as others) that if you want iAds, you need to be 4.0 minimum. – ingh.am Nov 23 '10 at 23:24 ...
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Is there a short contains function for lists?

...her have said, you may also be interested to know that what in does is to call the list.__contains__ method, that you can define on any class you write and can get extremely handy to use python at his full extent.   A dumb use may be: >>> class ContainsEverything: def __init__(self):...
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When should Flask.g be used?

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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How to avoid passing parameters everywhere in play2?

...s composition or by using implicit parameters. In Java I suggest using the Http.Context.args map to store useful values and retrieve them from the templates without having to explicitly pass as templates parameters. Using implicit parameters Place the menus parameter at the end of your main.scala....
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Counting array elements in Python [duplicate]

... in an array, because contrary to logic array.count(string) does not count all the elements in the array, it just searches for the number of occurrences of string. ...