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What does = +_ mean in JavaScript

... r = +_; + tries to cast whatever _ is to a number. _ is only a variable name (not an operator), it could be a, foo etc. Example: +"1" cast "1" to pure number 1. var _ = "1"; var r = +_; r is now 1, not "1". Moreover, according to the M...
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TypeScript or JavaScript type casting

How does one handle type casting in TypeScript or Javascript? 3 Answers 3 ...
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Select SQL Server database size

...y: SELECT database_name = DB_NAME(database_id) , log_size_mb = CAST(SUM(CASE WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8,2)) , row_size_mb = CAST(SUM(CASE WHEN type_desc = 'ROWS' THEN size END) * 8. / 1024 AS DECIMAL(8,2)) , total_size_mb = CAST(SUM(size) * 8. ...
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How to convert from System.Enum to base integer?

...g any System.Enum derived type to its corresponding integer value, without casting and preferably without parsing a string. ...
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Java Generics: Cannot cast List to List? [duplicate]

... If you do have to cast from List<DataNode> to List<Tree>, and you know it is safe to do so, then an ugly way to achieve this is to do a double-cast: List<DataNode> a1 = new ArrayList<DataNode>(); List<Tree> b1 =...
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How do I convert a double into a string in C++?

... The boost (tm) way: std::string str = boost::lexical_cast<std::string>(dbl); The Standard C++ way: std::ostringstream strs; strs << dbl; std::string str = strs.str(); Note: Don't forget #include <sstream> ...
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How to cast/convert pointer to reference in C++

... Call it like this: foo(*ob); Note that there is no casting going on here, as suggested in your question title. All we have done is de-referenced the pointer to the object which we then pass to the function. ...
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Converting stream of int's to char's in java

...et, or use InputStreamReader with the appropriate Charset instead. Simply casting from int to char only works if you want ISO-8859-1, if you're reading bytes from a stream directly. EDIT: If you are already using a Reader, then casting the return value of read() to char is the right way to go (aft...
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Return Boolean Value on SQL Select Statement

...N EXISTS ( SELECT * FROM [User] WHERE UserID = 20070022 ) THEN CAST(1 AS BIT) ELSE CAST(0 AS BIT) END share | improve this answer | follow | ...
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Converting an int to std::string

... boost::lexical_cast<std::string>(yourint) from boost/lexical_cast.hpp Work's for everything with std::ostream support, but is not as fast as, for example, itoa It even appears to be faster than stringstream or scanf: http://www....