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Reading header data in Ruby on Rails

... Rails now attaches HTTP_ to the header as well as converting it to all caps so it would now be: request.headers["HTTP_CONTENT_TYPE"] share | improve this answer |...
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Purpose of Activator.CreateInstance with example?

... obj = (MyFancyObject)Activator.CreateInstance("MyAssembly", ClassName)) and can then do stuff like: obj.A = 100; That's its purpose. It also has many other overloads such as providing a Type instead of the class name in a string. Why you would have a problem like that is a different story. Her...
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How to generate XML file dynamically using PHP?

...ocessing instruction. I believe, SimpleXMLElement will do the right thing: converting all the queried string values to your mb_internal_encoding. – Ivan Krechetov Jan 29 '13 at 9:07 ...
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How can I turn a List of Lists into a List in Java 8?

... You can use flatMap to flatten the internal lists (after converting them to Streams) into a single Stream, and then collect the result into a list: List<List<Object>> list = ... List<Object> flat = list.stream() .flatMap(List::stream) .collec...
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PHP prepend leading zero before single digit number, on-the-fly [duplicate]

... You can use sprintf: http://php.net/manual/en/function.sprintf.php <?php $num = 4; $num_padded = sprintf("%02d", $num); echo $num_padded; // returns 04 ?> It will only add the zero if it's less than the required number of character...
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How to count items in a Go map?

... Use len(m). From http://golang.org/ref/spec#Length_and_capacity len(s) string type string length in bytes [n]T, *[n]T array length (== n) []T slice length map[K]T map length (number of defined keys) c...
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C fopen vs open

... open() is a low-level os call. fdopen() converts an os-level file descriptor to the higher-level FILE-abstraction of the C language. fopen() calls open() in the background and gives you a FILE-pointer directly. There are several advantages to using FILE-objects r...
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What is the difference between lemmatization vs stemming?

...o incorrect meanings and spelling. Lemmatization considers the context and converts the word to its meaningful base form, which is called Lemma. Sometimes, the same word can have multiple different Lemmas. We should identify the Part of Speech (POS) tag for the word in that specific context. Here a...
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jQuery AJAX file upload PHP

...aterialise Click Here to Download When you select image the image will be Converted in base 64 and you can store this in to database so it will be light weight also. share | improve this answer ...
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(this == null) in C#!

...primary != null && !(primary is DBNull)) return (T)Convert.ChangeType(primary, typeof(T)); else if (Default.GetType() == typeof(T)) return Default; } catch (Exception e) { throw new Exception("C:CFN.1 - " + e.Mes...