https://twitter.com/jden415/status/563862293188866048

gistfile1.txt

var assert = require('assert')

!function () {

  var x
  try {
    x()
  } catch (e) {
    assert(e instanceof TypeError)
    assert(e.message === 'undefined is not a function')
  }

}()

!function () {
  
  var x = {}
  try {
    x.noSuchFunction()
  } catch (e) {
    assert(e instanceof TypeError)
    assert(e.message === 'undefined is not a function')
  }

}()

!function () {

  function Foo(){}
  var foo = new Foo

  try {
    foo.notSuchFunction()
  } catch (e) {
    assert(e instanceof TypeError)
    assert(e.message === 'undefined is not a function')
  }

}()