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Mimicking sets in JavaScript?

...arrayLikeObject) // adds anything that a subclass returns true on _isPseudoArray() // s.remove(key) // removes a key from the Set // s.remove(["a", "b"]); // removes all keys in the passed in array // s.remove("a", "b", ["first", "second"]); // removes all keys...
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What's the difference between ViewData and ViewBag?

...ed, here is the source: http://www.asp.net/whitepapers/mvc3-release-notes#_Toc2_4 MVC 2 controllers support a ViewData property that enables you to pass data to a view template using a late-bound dictionary API. In MVC 3, you can also use somewhat simpler syntax with the ViewBag prope...
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What is a “context bound” in Scala?

... Iterable[T]) = xs zip ys map { t => implicitly[Numeric[T]].times(t._1, t._2) } or def **[T : Numeric](xs: Iterable[T], ys: Iterable[T]) = xs zip ys map { t => context[T]().times(t._1, t._2) } share ...
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NGinx Default public www location?

...ed/default and find server { listen 80 default; server_name localhost; access_log /var/log/nginx/localhost.access.log; location / { root /var/www/nginx-default; index index.html index.htm; } The root is the default...
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No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin '…' is therefor

...omHeaders> <add name="Access-Control-Allow-Origin" value="your_clientside_websiteurl" /> </customHeaders> </httpProtocol> </system.webServer> For instance lets say, if the server domain is http://live.makemypublication.com and client is http://www.makemy...
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autolayout - make height of view relative to half superview height

...youtConstraint constraintsWithVisualFormat:@"V:[topLayoutGuide]-0-[_view1]-0-[_view2(==_view1)]-0-[bottomLayoutGuide]" options:0 metrics:nil views:viewsDict]]; ...
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Return XML from a controller's action in as an ActionResult?

...aled class XmlActionResult : ActionResult { private readonly XDocument _document; public Formatting Formatting { get; set; } public string MimeType { get; set; } public XmlActionResult(XDocument document) { if (document == null) throw new ArgumentNullExcepti...
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There is no ViewData item of type 'IEnumerable' that has the key 'xxx'

...ntains a SelectList with the same name as your DropDownList i.e. "submarket_0", the Html helper will automatically populate your DropDownList with that data if you don't specify the 2nd parameter which in this case is the source SelectList. What happened with my error was: Because the table contai...
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How to pass a URI to an intent?

...on inside my CameraActionActivity Activity class where I call camera btn_frag_camera.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intenImatToSec = new Intent(MediaStore.ACTION_VIDEO_CAPTURE); ...
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An example of how to use getopts in bash

...ere it shouldn't, so change it into just h (without colon) to expect -p any_string, you need to add p: to the argument list Basically : after the option means it requires the argument. The basic syntax of getopts is (see: man bash): getopts OPTSTRING VARNAME [ARGS...] where: OPTSTRING is s...