Stephen Woodbridge schrieb:
> OK, here is an interesting tidbit.
>
> I used the test below and and did the 7 click thing, and out of all my
> tests except one, the long delay happened in has() and once I got it in
> find(). has() is pretty simple and I wonder if this has less to do with
> the number of clicks versus the number of regex's we use and dispose or
> something like that.
>
> I love testing!!! It makes one look at what is happening and sometimes
> you are surprised! but the questions and introspection are always good
> on occasion.
>
That is an interesting point. I wonder if it makes sense to cache
regular expressions. Eg:
function cache(expression, options) {
var key = expression + options || "";
var regex = cache[key];
if(!regex) {
regex = cache[key] = new RegExp(expression, options);
}
return regex;
}
Appending the options to the cache key should prevent any ambiguity. The
intersting questions: Is it more efficient to cache regular expressions
then to let the garbage collected?
--
Jörn Zaefferer
http://bassistance.de
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