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Check if a method exists

... 189 if ([obj respondsToSelector:@selector(methodName:withEtc:)]) { [obj methodName:123 withEtc:...
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What exactly does the “u” do? “git push -u origin master” vs “git push origin master”

...y again (e.g. 'git pull <repository> <refspec>'). See git-pull(1) for details. If you often merge with the same branch, you may want to use something like the following in your configuration file: [branch "test"] remote = <nickname> merge = <remote-ref> [re...
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Reverse a string in Java

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How to randomize (shuffle) a JavaScript array?

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Overlaying histograms with ggplot2 in R

... 115 Your current code: ggplot(histogram, aes(f0, fill = utt)) + geom_histogram(alpha = 0.2) is ...
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Math functions in AngularJS bindings

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Can I access constants in settings.py from templates in Django?

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How to remove .htaccess password protection from a subdirectory

... 154 You need to create a new .htaccess file in the required directory and include the Satisfy any ...
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jquery $(window).height() is returning the document height

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How can I loop through a List and grab each item?

...(var money in myMoney) { Console.WriteLine("Amount is {0} and type is {1}", money.amount, money.type); } MSDN Link Alternatively, because it is a List<T>.. which implements an indexer method [], you can use a normal for loop as well.. although its less readble (IMO): for (var i = 0; i ...