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Better way to check if a Path is a File or a Directory?

I am processing a TreeView of directories and files. A user can select either a file or a directory and then do something with it. This requires me to have a method which performs different actions based on the user's selection. ...
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Using Rails 3.1, where do you put your “page specific” JavaScript code?

...f your JavaScript gets merged into 1 file. Rails does this by default when it adds //= require_tree . to the bottom of your application.js manifest file. ...
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How to link a Facebook app with an existing fan page

... landing pages for apps , how do I get my app to point to the Fan page for it's landing page? 7 Answers ...
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Do I need a content-type header for HTTP GET requests?

... sender. If a Content-Type header field is not present, the recipient MAY either assume a media type of "application/octet-stream" ([RFC2046], Section 4.5.1) or examine the data to determine its type. It means that the Content-Type HTTP header should be set only for PUT and POST requests. ...
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css3 transition animation on load?

Is it possible to use CSS3 transition animation on page load without using Javascript? 11 Answers ...
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What's the difference between utf8_general_ci and utf8_unicode_ci?

...tation from early MySQL versions which remains only for backward compatibility. The fixed version was given the name utf8mb4. Note: Newer versions of MySQL have updated Unicode sorting rules, available under names such as utf8mb4_0900_ai_ci for equivalent rules based on Unicode 9.0 - and with no equ...
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What is the role of the bias in neural networks? [closed]

I'm aware of the gradient descent and the back-propagation algorithm. What I don't get is: when is using a bias important and how do you use it? ...
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Wrap a delegate in an IEqualityComparer

Several Linq.Enumerable functions take an IEqualityComparer<T> . Is there a convenient wrapper class that adapts a delegate(T,T)=>bool to implement IEqualityComparer<T> ? It's easy enough to write one (if your ignore problems with defining a correct hashcode), but I'd like to know...
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How to fix “Attempted relative import in non-package” even with __init__.py

I'm trying to follow PEP 328 , with the following directory structure: 18 Answers 18 ...
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What is android:weightSum in android, and how does it work?

...as the sum of the layout_weight of all the children if not specified explicitly. Let's consider an example with a LinearLayout with horizontal orientation and 3 ImageViews inside it. Now we want these ImageViews always to take equal space. To acheive this, you can set the layout_weight of each Imag...