Michael Peters wrote:
> ...
> Just some random thoughts: maybe putting it in String since it returns a
> string?
> String.createUid()? Or maybe hanging it off of Prototype itself (seems like
> that
> would set a bad precedent for hanging tons of useful methods off of the
> Prototype namespace). In Perl land we have Data::UUID for stuff like this, so
> maybe we should introduce a Data namespace?
>
Having a general object utility is a good idea. And, as Ryan points out,
a prefix can provide a simple convention for future access to elements
without caching the ids.
Brainstorming in specifics, what about a method called
Object#assignGuid? After all, we are reading/writing a property of an
object. Below is Jeff's original function reincarnated. I think it is
simple and widely useful.
Object.assignGuid = function(object, prefix) {
if (prefix === undefined) prefix = '__guid';
if (!object.id) {
object.id = prefix + (arguments.callee.nextId++);
}
return object.id;
};
Object.assignGuid.nextId = 0;
Then, if we wanted to cater to the high-use-case Element or
Element.Method scenario:
Element.assignGuid = function(element, prefix) {
return Object.assignGuid($(element), prefix);
};
- Ken Snyder
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