A lot of people found that behavior kind of cryptic... I cleaned it
up for 1.2.1 with a single closure around all that stuff.
On Oct 3, 2008, at 11:12 AM, Nathan White wrote:
Ah... thanks guys... I totally missed that.. nice trick!
On Fri, Oct 3, 2008 at 11:04 AM, nutron <[EMAIL PROTECTED]> wrote:
If you look at the last line of the function, it returns
arguments.callee. This is a pointer to the anonymous function. So
the first call (with Array), calls the anonymous function. It then
returns itself and so the second call does the same.
On Fri, Oct 3, 2008 at 8:01 AM, Nathan White <ml-user
[EMAIL PROTECTED]> wrote:
I feel comfortable with the internals of mootools for the most part
and love reading the code. However in 1.2.0 there is a bit of code
that perplexes me. I donno if I'm missing something or what. I
figured I would ask for some help or clarification. I will note that
in the nightly builds this code has been completely replaced with
something that seems a bit more robust.
In the Core.js file line 103-108
(function(object, methods){
for (var i = methods.length; i--; i) Native.genericize(object,
methods[i], true);
return arguments.callee;
})
(Array, ['pop', 'push', 'reverse', 'shift', 'sort', 'splice',
'unshift', 'concat', 'join', 'slice', 'toString', 'valueOf',
'indexOf', 'lastIndexOf'])
(String, ['charAt', 'charCodeAt', 'concat', 'indexOf',
'lastIndexOf', 'match', 'replace', 'search', 'slice', 'split',
'substr', 'substring', 'toLowerCase', 'toUpperCase', 'valueOf']);
I understand and recognize the anonymous function syntax (function()
{})() but what I don't get is how the it appears the params are
passed twice to the same anonymous function. The (Array...) followed
by the (String...); doesn't makes sense to me. If I take this
snippet of code out by itself modifying the internal function for
generic debugging info it breaks. It handles the Array () fine but
it gets to the String () and breaks.
I looked above in the code to see if I was missing some other
closure but I didn't see anything.
Can anyone shed any light on this, and why it works?
The MooTools Tutorial: www.mootorial.com CNET Clientside:
clientside.cnet.com
View this message in context: Re: confused with core.js
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