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Declaring variables inside or outside of a loop

... The scope of local variables should always be the smallest possible. In your example I presume str is not used outside of the while loop, otherwise you would not be asking the question, because declaring it inside the while loop would not be an option, since it would not comp...
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RESTful on Play! framework

.....</html> This approach gives browsers always the HTML view, since all browsers send a text/html content type in their Accept header. All other clients (possibly some JavaScript-based AJAX requests) can define their own desired content type. Using jQuerys ajax() method you could do the follo...
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Joins are for lazy people?

...r developer who claimed to me that JOINs (SQL) are useless. This is technically true but he added that using joins is less efficient than making several requests and link tables in the code (C# or Java). ...
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ValidateAntiForgeryToken purpose, explanation and example

...icking the logged in user into submitting a form, or by simply programmatically triggering a form when the page loads. The feature doesn't prevent any other type of data forgery or tampering based attacks. To use it, decorate the action method or controller with the ValidateAntiForgeryToken attrib...
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Grid of responsive squares

...creating a layout with responsive squares . Each square would have vertically and horizontally aligned content. The specific example is displayed below... ...
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Gridview with two columns and auto resized images

... Basically, in Android's ImageView class, there's no way to simply specify "hey, keep a square aspect ratio (width / height) for this view" unless you hard code width and height. You could do some manual adjustment of LayoutParams ...
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How to turn on front flash light programmatically in Android?

I want to turn on front flash light (not with camera preview) programmatically in Android. I googled for it but the help i found referred me to this page ...
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What is the meaning of single and double underscore before an object name?

...at least two leading underscores, at most one trailing underscore) is textually replaced with _classname__spam, where classname is the current class name with leading underscore(s) stripped. This mangling is done without regard to the syntactic position of the identifier, so it can be used to define...
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What is the difference between quiet NaN and signaling NaN?

...unit (FPU) or library if floating-point is implemented in software. A signalling NaN will produce a signal, usually in the form of exception from the FPU. Whether the exception is thrown depends on the state of the FPU. C++11 adds a few language controls over the floating-point environment and pr...
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File size exceeds configured limit (2560000), code insight features not available

...tance for. # The larger file is the slower its editor works and higher overall system memory requirements are # if code assistance is enabled. Remove this property or set to very large number if you need # code assistance for any files available regardless their size. #------------------------------...