What are the main purposes of using std::forward and which problems it solves?

c++c++-faqc++11rvalue-referenceperfect-forwarding
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What is the purpose of Node.js module.exports and how do you use it?

javascriptnode.js
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What does <meta http-equiv="X-UA-Compatible" content="IE=edge"> do?

htmlbrowserinternet-explorerx-ua-compatible
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Should I use the datetime or timestamp data type in MySQL?

datetimemysqltimestampsqldatatypes
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In the shell, what does " 2>&1 " mean?

bashshellunixredirect
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