Kleiner JS-Spaß mit arguments.callee.name

callee.name.js

x = function(foo) { console.log(arguments.callee.name) };
x("test")
> x

y = function(func) { func("bar") }
y(x)
> x

z = x
z()
> x

x = undefined
z()
> x

y(function() {console.log(arguments.callee.name)})
> undefined

var y = function() {console.log(arguments.callee.name)}
y()
> y

a = y
delete(y)
y()
> Uncaught ReferenceError: y is not defined

a()
> y

b = function(foo) {
  console.log(
    arguments[0]()
  )
};
b(function() { return arguments.callee.name })
> ""

var x = function(foo) {
  if(foo === undefined) {
    return eval(arguments.callee.name+"('bar');");
  } else {
    return foo;
  }
};
x()
> "bar"

z = x;
z();
> "bar"


delete(x);
z()
> Uncaught ReferenceError: x is not defined