A function that tells itself

[Stone Zhong]

Tired of reading, and make some fun

var a = function Foo() { return Foo; }();

alert(a);
alert(a());
alert(a()());
alert(a()()());

all outputs are "function Foo() { return Foo; }"

 

[Dmitry A. Soshnikov]

Tired of reading, and make some fun

var a = function Foo() { return Foo; }();

alert(a);
alert(a());
alert(a()());
alert(a()()());

all outputs are "function Foo() { return Foo; }"

Ah, so you've "invented" "self-reproducing" (or "self-replicative")
functions -- http://bit.ly/dacAAg

Dmitry.

 

[Thomas 'PointedEars' Lahn]

Tired of reading, and make some fun

var a = function Foo() { return Foo; }();

You want to avoid named function expressions.

alert(a);
alert(a());
alert(a()());
alert(a()()());

all outputs are "function Foo() { return Foo; }"

The explanation why that is so, i.e. why passing a reference to a Function
instance to the `alert' method of Window instances may result in displaying
the code of the referred function is left as an exercise to the reader.


PointedEars