Actually it may be a bit faster with the two tests if a lot of them match at the beginning. Testing at the beginning (begins with) is a lot faster than spinning through the entire thing (contains), and if the first clause of the OR is satisfied, it won’t execute the second clause. So, maybe.
I probably wouldn’t write it with the two tests unless I was really in a hurry and proved it to be an advantage with typical test data. Jerry > On Apr 23, 2015, at 3:38 PM, Mike Bonner <bonnm...@gmail.com> wrote: > > Did some testing out of curiosity, and WOW this is fast. > > > repeat for each key tKey in tArray > if tArray[tKey] begins with tSearchString or \ > tArray[tKey] contains tSearchString then > put tKey & return after tResults > end if > end repeat > > The only question I have is.. why search for the same thing twice? If it > "contains" it also "begins with" so its a redundant check. (making it > faster) Am I missing something here? > > On Thu, Apr 23, 2015 at 4:01 PM, Geoff Canyon <gcan...@gmail.com> wrote: > >> On Wed, Apr 22, 2015 at 6:22 PM, Peter Haworth <p...@lcsql.com> wrote: >> >>> Out of interest, I added a test which used combine and filter. It took >>> around 3 times longer than the other two tests. >>> >> >> Yeah, I didn't expect this to be competitive except under specific >> circumstances -- if the filter command happens to be suited to the >> (relatively complex) search performed, for example. I didn't see 3x, more >> like 1.5x to 2x, but still, iterating is generally the way to go. >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your >> subscription preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode >> > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
