ReferenceError: StringDecoder is not defined

概述1、错误描述&gt var sd=require("string_decoder").StringDecoder;undefined&gt var decoder=new StringDecoder();ReferenceError: StringDecoder is not defined at r

1、毛病描写

> var sd=require("string_decoder").StringDecoder;undefined> var decoder=new StringDecoder();ReferenceError: StringDecoder is not defined at repl:1:17 at REPLServer.defaultEval (repl.Js:262:27) at bound (domain.Js:287:14) at REPLServer.runBound [as eval] (domain.Js:300:12) at REPLServer.<anonymous> (repl.Js:431:12) at emitOne (events.Js:82:20) at REPLServer.emit (events.Js:169:7) at REPLServer.Interface._online (readline.Js:211:10) at REPLServer.Interface._line (readline.Js:550:8) at REPLServer.Interface._ttyWrite (readline.Js:827:14)>
2、毛病缘由

     由毛病提示可知，StringDecoder没有定义

3、解决办法

> var StringDecoder=require("string_decoder").StringDecoder;undefined> var decoder=new StringDecoder();undefined

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