Node.js __dirname not defined

Question

My directory look like this:

/config.json , /server.js , /staticFiles/welcome.html

Running server.js gives error:

app.use(express.static(_dirname + "/staticFiles")); ^ ReferenceError: _dirname is not defined

My Server.js:

//------------Server-------------

var fs = require("fs");
var config = JSON.parse(fs.readFileSync("./config.json"));

 console.log("Server UP and running.."); 

 var host = config.host;
 var port = config.port;
 var express = require("express");

 var app = express.createServer();



 //---------Application----------------

app.use(app.router);
 app.use(express.static(_dirname + "/staticFiles"));

app.get("/", function(request,response){

response.send("<h1>"/" of TrimServer</h1>");

 });

app.listen(port,host); 
console.log("Listening on Port -->",port);


 //--------------End-------------------

A quick search found multiple matches for this error. groups.google.com/forum/m/#!msg/nodejs/K4vhAC5yXm4/qFfGK0WCgSYJ — WiredPrairie
– WiredPrairie, Commented Sep 1, 2013 at 12:08

Aanchal1103 · Accepted Answer · 2017-09-21 11:50:07Z

40

You are using one underscore while this variable actually has two underscores at the beginning: http://nodejs.org/docs/latest/api/globals.html#globals_dirname

So use

app.use(express.static(__dirname + "/staticFiles"));

instead of

app.use(express.static(_dirname + "/staticFiles"));

edited Sep 21, 2017 at 11:50

Aanchal1103

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answered Sep 1, 2013 at 8:49

Didatus

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1 Comment

gs_za Over a year ago

Thanks Cromax. @ManishS, you may mark this as the correct answer

Saket Sinha · Accepted Answer · 2017-01-23 07:38:53Z

1

use __dirname instead of _dirname (Missing one underscore in your code)

answered Jan 23, 2017 at 7:38

Saket Sinha

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Comments

Qeole · Accepted Answer · 2019-07-16 12:33:29Z

0

Use __dirname instead of _dirname (You are missing one underscore in your code).

edited Jul 16, 2019 at 12:33

Qeole

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answered Jul 16, 2019 at 10:48

Chandra Pant

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