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On Apr 8, 2005, at 3:15 PM, Michael G Schwern wrote:
> I have to write my own include function. This include function isn't
> even
> native to Javascript, it relies on the browser DOM. I have to cut &
> paste
> this code into every JS file which wants to include another. I have to
> cut & paste code so that I do not have to cut & paste code.
My understanding from talking to some JS folks on IRC is that
JavaScript was never designed to do I/O. Too much of a security threat
in browsers. Of course, this makes it practically useless as a
general-use language (maybe one can hack around that in Rhino, but I
haven't played with it, yet).
http://www.mozilla.org/rhino/
So, without I/O, all you can do is ask the JavaScript host (Mozilla,
IE, Safari, whatever) to do it for you. They don't provide a general
way, either, so you have to use the DOM to create a new script element.
Other than the document.write hack, there's this hack:
document.createElement("script");
Uh, then you can set the src and type attributes. But don't expect to
use any of that code before the body.onload event fires.
The upshot is that I don't think that there can ever be a CJSAN. Pity.
> In related news... Lua. NO NAMESPACES! WHAT THE HELL PEOPLE?! The
> tables-as-namespaces makes Perl 5's OO system look clean and well
> thought
> out.
At least you can hack around this one by adding properties to
functions, including constructors. I did this to create a singleton
object in TestBuilder.js;
function TestBuilder () {
if (!TestBuilder.Test) TestBuilder.Test = this;
return TestBuilder.Test;
}
TestBuilder.Test = TestBuilder.prototype;
Cheers,
David
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