xml to array is sloooow

Question

i want to load xml file in array

i use

var ddd:XML;

var ttt:URLLoader =new URLLoader();

ttt.load(new URLRequest("test1.xml"));

ttt.addEventListener(Event.COMPLETE, fdf);

var arr2:Array = new Array();

function fdf (e:Event)

{

ddd = new XML(e.target.data);

for (var i = 0; i < ddd.drug.length(); i++)

{

arr2.push(String(ddd.drug.@naame));

}

the xml file contain about 2000 record like this

when i use this it takes long time to do this for loop and the swf is shocked for many second until it works

is the xml is so big to be loaded in array in as3

or i have done some thing wrong

and is there any way to solve this

tkanks v.much

Anonymous · Accepted Answer

finlaly i found the solution

the slow problem come from

loading var from xml node through for loop

i found that loading all nodes attributes as one var

var ddd:XML;

var ttt:URLLoader =new URLLoader();

ttt.load(new URLRequest("test2.xml"));

ttt.addEventListener(Event.COMPLETE, fdf);

function fdf (e:Event)

{

ddd = new XML(e.target.data);

arr2 = [String(ddd.drug.@naame)]

}

then seperate it different var inside the array

arr2 = String(arr2[0]).split(",");

it nearly takes no time

but it need to write "," after the naame attribute in xml

Kenneth Kawamoto · Answer

Your for loop can be made to run faster by not evaluating length() on each iteration (a bad practise), using uint for the iterator, and looping backwards.

XML is slow though, so if after the loop optimisation it is still not fast enough you'd better look for alternatives. The data can be JSON or better still Flash Object via amfphp (so that there's no need to parse the data.) Or do not parse the XML to an Array - often no need to do that.

But reading kglad's post - you're not talking about the delay caused by URLLoader, right?

--

Kenneth Kawamoto

http://www.materiaprima.co.uk/

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