Better yet, why not just: myArray = [];
done? ----- Original Message ----- From: "Mark Winterhalder" <[EMAIL PROTECTED]> To: "Flashcoders mailing list" <[email protected]> Sent: Sunday, November 20, 2005 6:49 PM Subject: Re: [Flashcoders] Array Madness - test yourself > Can you > spot the error? yes :) why not simply do something like that: while( myArray.length ) myArray.pop(); ? mark On 11/21/05, Judah Frangipane <[EMAIL PROTECTED]> wrote: > I just want to bring to your attention a rare array problem that eluded > me for years. I just realized what is going on. > > Whenever I tried to clear an array I would use a for loop, iterate > through all the items and pop each one off. Every once in a while the > arrays would still contain values and not be completely erased. Can you > spot the error? Here is the code: > > ***************************************** > wrong way > ***************************************** > // create an array > errors = new Array() > // add two items > errors.push("item 1") > errors.push("item 2") > > // loop through each item > for (var i=0;i < errors.length; i++) { > trace("removing item") > errors.pop() > } > // errors.length = 1 > trace("errors.length="+errors.length) > > > ***************************************** > right way > ***************************************** > // create an array > errors = new Array() > // add two items > errors.push("item 1") > errors.push("item 2") > var len = errors.length; > > // loop through each item > for (var i=0;i < len; i++) { > trace("removing item") > errors.pop() > } > // errors.length = 0 > trace("errors.length="+errors.length) > > > Look at the condition (i < errors.length). > > If we pop an item off the end of the array then the length of the array > is decreased and we do not iterate through all items in the array. Hope > this helps someone. > > Best Regards, > Judah > > > > _______________________________________________ > Flashcoders mailing list > [email protected] > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > -- http://snafoo.org/ jabber: [EMAIL PROTECTED] _______________________________________________ Flashcoders mailing list [email protected] http://chattyfig.figleaf.com/mailman/listinfo/flashcoders _______________________________________________ Flashcoders mailing list [email protected] http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
