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How do I create delegates in Objective-C?

...rmat:@"Parameter does not conform to MyDelegate protocol at line %d", (int)__LINE__]; } in your delegate accessor (setDelegate) code. This helps minimize mistakes. share | improve this answer ...
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How do I get and set Environment variables in C#?

... I ran into this while working on a .NET console app to read the PATH environment variable, and found that using System.Environment.GetEnvironmentVariable will expand the environment variables automatically. I didn't want that to happen...that means folders in the path suc...
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How to add 10 days to current time in Rails

...e: [1, 4] With system timezone [2, 3] With config timezone of your Rails app [5] Date only no time included in result share | improve this answer | follow |...
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python pandas: apply a function with arguments to a series

...to pass extra arguments (see the new documentation). So now you can do: my_series.apply(your_function, args=(2,3,4), extra_kw=1) The positional arguments are added after the element of the series. For older version of pandas: The documentation explains this clearly. The apply method accepts a...
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What is a Maven artifact?

... My book says "the core artifact of this online application will be a Java class named User, which will"... Is this the same as the artifact you mentioned ? – david blaine Apr 17 '13 at 0:57 ...
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Sound effects in JavaScript / HTML5

...er the browser supports Ogg Vorbis. If you're writing a game or a music app (more than just a player), you'll want to use more advanced Web Audio API, which is now supported by most browsers. share | ...
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Path.Combine absolute with relative path strings

... For windows universal apps Path.GetFullPath() is not available, you can use the System.Uri class instead: Uri uri = new Uri(Path.Combine(@"C:\blah\",@"..\bling")); Console.WriteLine(uri.LocalPath); ...
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What is the official “preferred” way to install pip and virtualenv systemwide?

...here/how do you install setuptools-0.8? Looks like you are just grabbing ez_setup.py for a "lightweight version" of getting pip. I'd do the same but fear that it will break in the near future and I'll get stuck here again (like I always do) – Steven Lu Jul 13 '...
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Change values while iterating

...", ""}, &Attribute{"bar", ""}, }} for _, attr := range n.Attr { if attr.Key == "href" { attr.Val = "something" } } for _, v := range n.Attr { fmt.Printf("%#v\n", *v) ...
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Is it possible to change a UIButtons background color?

... & alpha). I defn'ed 2 color arrays, one for each state, and chose the appropriate one in drawRect based on the button state. – daver Aug 13 '13 at 2:25 ...