hoistedFunc.js

function noBar() {
  console.log(bar());
}
// ReferenceError: bar is not defined

function hoistedVar() {
  console.log(bar());

  var bar = function() {
    return 42;
  };
}
// TypeError: undefined is not a function

function hoistedFunc() {
  console.log(baz());

  function baz() {
    return 42;
  };
}
// 42