Subj : "named" vs. anonymous function
To   : netscape.public.mozilla.jseng
From : Jens Thiele
Date : Fri Dec 10 2004 06:36 pm

Hi,

just out of curiousity:
why do named functions have an additional prototype (in spidermonkey)?
example:

spidermonkey shell:

js> x=function foo(){}
function foo() {
}

js> y=function (){}
function () {
}

js> x.__proto__===Function.prototype
false
js> x.__proto__.__proto__===Function.prototype
true
js> y.__proto__===Function.prototype
true

a graph perhaps better visualizing it:
<http://egachine.berlios.de/named-vs-anon.png> (13k)

rhino does not do this:

js> x=function foo(){}
function foo() {
}

js> y=function (){}
function () {
}

js> x.__proto__===Function.prototype
true
js> y.__proto__===Function.prototype
true


Jens

.