Get containing function's name.

func-name.coffee

require('source-map-support').install handleUncaughtExceptions: false

constructorRegex = /^new /
nameRegex        = /at (.*) \(/
objectRegex      = /^Object\./

log = (message) ->
  line = (new Error()).stack.split('\n')[2]
  name = (nameRegex.exec line)[1].replace objectRegex, ''

  if constructorRegex.test name
    name = name.replace(constructorRegex, '') + '.constructor'
    name = name.replace /^new /

  console.log "[#{name}]", message

foo = ->
  log 'inside foo'

obj =
  bar: ->
    log 'inside obj.bar'

class Baz
  constructor: ->
    log 'inside Baz.constructor'

  qux: ->
    log 'inside Baz.qux'

foo()
obj.bar()
baz = new Baz()
baz.qux()

gistfile1.txt

$ node func-name.js
[foo] inside foo
[obj.bar] inside obj.bar
[Baz.constructor] inside Baz.constructor
[Baz.qux] inside Baz.qux