Why doesn't errors to the stdout on linux have line numbers or stack traces?

[Robert Steckroth]

Some nodejs errors are not very informative. How can I get nodejs to print line numbers and stack trace for this error?

Exaple ouptut of nodejs error to satdout -> 

Cannot read property 'sp' of undefined

[Joe H]

You should call console.log(err.stack) instead of console.log(err)

[Gustavo Machado]

Hopefully this will clarify:

> var er = new Error('foo');

undefined

> er.toString()

'Error: foo'

> er.message

'foo'

> er.stack

'Error: foo\n    at repl:1:10\n    at REPLServer.self.eval (repl.js:110:21)\n    at repl.js:249:20\n    at REPLServer.self.eval (repl.js:122:7)\n    at Interface.<anonymous> (repl.js:239:12)\n    at Interface.EventEmitter.emit (events.js:95:17)\n    at Interface._onLine (readline.js:202:10)\n    at Interface._line (readline.js:531:8)\n    at Interface._ttyWrite (readline.js:760:14)\n    at ReadStream.onkeypress (readline.js:99:10)'

> er.stack.split('\n').forEach(function (line) { console.log(line); });

Error: foo

    at repl:1:10

    at REPLServer.self.eval (repl.js:110:21)

    at repl.js:249:20

    at REPLServer.self.eval (repl.js:122:7)

    at Interface.<anonymous> (repl.js:239:12)

    at Interface.EventEmitter.emit (events.js:95:17)

    at Interface._onLine (readline.js:202:10)

    at Interface._line (readline.js:531:8)

    at Interface._ttyWrite (readline.js:760:14)

    at ReadStream.onkeypress (readline.js:99:10)

Cheers,

Gus

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