node.js - process.env.NODE_ENV is in development still it shows unexpected behivour -

i'm running node server in development environment in server file shows unexpected behaviour

my script fallows:

var env = process.env.node_env; console.log("------------------------------"); console.log("envenv",typeof env,env); console.log("0",typeof env); console.log("00",env); console.log("2",env.tostring()=='development'); console.log("3",""+env.tostring()=='production'); console.log("2",env==='development'); console.log("3",env=="production"); console.log("------------------------------"); 

but gives following output

------------------------------ envenv string 'development' 0 string 00 'development' 2 false 3 false 2 false 3 false ------------------------------ 

when tried of following worked fine

var env = process.env.node_env.trim();  var env = process.env.node_env.tolowercase(); var env = process.env.node_env.replace("","");  ............. 

or method other tostring() in prototype of string class worked fine

the environment variable node_env contains superfluous '. went wrong when setting environment variable. windows system use

> set node_env=development 

instead of

> set node_env='development' 

that should fix issue.

to current value of node_env printed on command line use

> echo %node_env% 

that should print

> development 

without " or '