I tried it with the following implementation :
function myFunc(a) {
$A(a).each(function (o) { alert(o) });
}
It doesn't work, because for $A() to be of any use, I have to use $A
(argument), not $A(a), but the fact is, I have several arguments, not
just one. I want to treat the first argument as an Enumerable, and the
other arguments have different purposes.
Here is an actual function:
UI.Observer = function (elements, events, handlers) {
var elements = (elements && elements.size !== undefined ? elements :
[elements]);
var events = (events && events.size !== undefined ? events :
[events]);
var handlers = (handlers && handlers.size !== undefined ? handlers :
[handlers]);
var handler = null;
var pairs = $R(1, events.size()).map(function (i) {
if(typeof handlers[i-1] != "undefined") handler = handlers[i-1];
if(typeof handler == "function") return { event:events[i-1],
handler:handler };
});
var operate = function (method) {
elements.each(function (element) {
pairs.each(function (pair) {
if(pair) Event[method](element, pair.event,
pair.handler);
});
});
};
this.go = operate.curry("observe");
this.stop = operate.curry("stopObserving");
this.go();
}
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