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Are PHP Variables passed by value or by reference?

... name in the function definition. <?php function add_some_extra(&$string) { $string .= 'and something extra.'; } $str = 'This is a string, '; add_some_extra($str); echo $str; // outputs 'This is a string, and something extra.' ?> ...
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Getting LaTeX into R Plots

... By approximately, I meant that LaTeX strings are translated into R's plotmath expressions -- which means that if plotmath does not support a specific LaTeX symbol, it will either not be rendered or it will be rendered by combining symbols that are available. ...
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How to Use slideDown (or show) function on a table row?

...ed = sR.defaults.slideSpeed; } if(typeof arg2 == 'string'){ sR.thisCallArgs.easing = arg2; }else if(typeof arg2 == 'function'){ sR.thisCallArgs.callback = arg2; }else if(typeof arg2 == 'undefined') { sR....
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Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?

Does javascript use immutable or mutable strings? Do I need a "string builder"? 10 Answers ...
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Efficiency of Java “Double Brace Initialization”?

...Just for reference, double brace initialization is the following: List<String> list = new ArrayList<String>() {{ add("Hello"); add("World!"); }}; It looks like a "hidden" feature of Java, but it is just a rewrite of: List<String> list = new ArrayList<String>() { ...
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Type erasure techniques

...oid>)> call; call = reinterpret_cast<voidFun>(fun<std::string>); call(std::make_shared<std::string>("Hi there!")); call = reinterpret_cast<voidFun>(fun<int>); call(std::make_shared<int>(33)); call = reinterpret_cast<voidFun>(fun&...
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RESTful call in Java

...rns you an InputStream. You will then have to convert your input stream to string and parse the string into it's representative object (e.g. XML, JSON, etc). Alternatively, Apache HttpClient (version 4 is the latest). It's more stable and robust than java's default URLConnection and it supports mos...
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What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon

... as the limit ... without formatting. Adding formatting may add roughly an extra character for every digit. So as a final thought it may not be a good idea to limit the phone number in the database in any way and leave shorter limits to the UX designers. ...
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What happens if you static_cast invalid value to enum class?

... implementers to apply to to their C++11 and C++14 compilation modes. (*) char is required to be at least 8 bit wide, but isn't required to be unsigned. The maximum value storable is required to be at least 127 per Annex E of the C99 Standard. Compare to [expr]/4 If during the evaluation of ...
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Is String.Format as efficient as StringBuilder

Suppose I have a stringbuilder in C# that does this: 12 Answers 12 ...