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Get MIME type from filename extension

... For ASP.NET or other The options were changed a bit in ASP.NET Core, here they are (credits): new FileExtensionContentTypeProvider().TryGetContentType(fileName, out contentType); (vNext only) Never tested, but looks like you...
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Inspect element that only appear when other element is mouse overed/entered

...s what it'll look like: Step-by-step: Open the DevTools in the Sources panel Make the tooltip appear by hovering over the button Press F8 to freeze the page Switch to the Elements panel and use the magnifying glass icon in the top left to select the tooltip If the tooltip shows up because of C...
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How to add reference to System.Web.Optimization for MVC-3-converted-to-4 app

...on package is now obsolete. With ASP.NET (MVC) 4 and higher you should install the Microsoft ASP.NET Web Optimization Framework: Install the package from nuget: Install-Package Microsoft.AspNet.Web.Optimization Create and configure bundle(s) in App_Start\BundleConfig.cs: public class BundleConf...
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Origin is not allowed by Access-Control-Allow-Origin

... of the responding server is to add a response header for: Access-Control-Allow-Origin: * This will allow cross-domain Ajax. In PHP, you'll want to modify the response like so: <?php header('Access-Control-Allow-Origin: *'); ?> You can just put the Header set Access-Control-Allow-Origin ...
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Constructors in JavaScript objects

...This is to make your script easier to debug. Open Chrome's Inspect Element panel, run this script, and expand the debug backtrace: <script> //============================================================ // Register Namespace //------------------------------------------------------------ var F...
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Authoritative position of duplicate HTTP GET query keys

...t you like. Typical approaches include: first-given, last-given, array-of-all, string-join-with-comma-of-all. Suppose the raw request is: GET /blog/posts?tag=ruby&tag=rails HTTP/1.1 Host: example.com Then there are various options for what request.query['tag'] should yield, depending on the...
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In Intellij, how do I toggle between camel case and underscore spaced?

... Very simple press Clr + F to open Find/Replace panel and check [✓] Regex copy past regex Find: [_]{1,1}([a-z]) Replace: \U$1 Press [Replace all] button, Enjoy Thanks @piotrek for _some_awe_var to _someAweVar Use Find: (\w)[_]{1,1}([a-z]) Replace: $1\U$2 ...
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How to open existing project in Eclipse

... Window->Show View->Navigator, should pop up the navigator panel on the left hand side, showing the projects list. It's probably already open in the workspace, but you may have closed the navigator panel, so it looks like you don't have the project open. Eclipse using ADT Build v22...
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ASP.NET MVC ambiguous action methods

I have two action methods that are conflicting. Basically, I want to be able to get to the same view using two different routes, either by an item's ID or by the item's name and its parent's (items can have the same name across different parents). A search term can be used to filter the list. ...
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What are the Web.Debug.config and Web.Release.Config files for?

... and you can create custom build configurations. A publish profile typically corresponds to a destination environment. share | improve this answer | follow ...