On Wed, Aug 27, 2014 at 11:59 AM, Richard Gaskin <ambassa...@fourthworld.com > wrote:
> > All keys in associative arrays are strings, and currently LC only supports > associative arrays. The string may consist of numerals only, but it's > still a string. > > It would seem that Trevor rebuilds the array on deletes. It would be > interesting to hear more about how he does this if he reads this message > and has time to reply. > > Or one of us could dive into the DG code and find it. Either way, I > suspect it's iterating over the collection. If I have an array which should be ordered (numerically indexed) AND the order of elements in the array can change then I use a key in the array that stores the sequence of elements in the array. For example: put "Bob" into thePeopleA["data"][1]["name"] put "Richard" into thePeopleA["data"][2]["name"] put "Trevor" into thePeopleA["data"][3]["name"] put "1,2,3" into thePeopleA["ids"] When I iterate over the array I loop through each item in thePeopleA["ids"] If I need to reorder/delete/add then I update the "ids" key. For example, if I wanted "Richard" to be first in the list then I would change "ids" to this: put "2,1,3" into thePeopleA["ids"] For arrays that aren't meant to be modified I don't bother with the "ids" property as I know I can just loop from 1 to the number of elements of thePeopleA. -- Trevor DeVore ScreenSteps www.screensteps.com - www.clarify-it.com _______________________________________________ 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
