Question

I tried to populate a two dimensoinal array through parsing xml, but my function doesn’t store the first items for some unknown reason. (So it stores [0][1] and [1][1] properly, but it does not store [0][0] and [0][1]);

The idea behind the array structure is:

first word-  >  first choice  ->[0][0]; 
first word  ->  second choice ->[0][1]; 
second word ->  first choice  ->[1][0];
... you can guess

It alerts everytime (just to check that counters are correct.)

The XML:

<?xml version="1.0" encoding="utf-8" ?>
 <Page>
  <Word id = "0">
    <Choice id = "0">
     <text>First word - 1. choice</text>
    </Choice>
    <Choice id = "1">
     <text>First word - 2. choice</text>
    </Choice>
  </Word>
 <Word id= "1">
  <Choices>
    <Choice id = "0">
      <text>Second word - First choice</text>
    </Choice>
    <Choice id= "1">
     <text>Second word - Second Choice</text>
    </Choice>
  </Choices>
 </Word>
</Page>

The function:

$(document).ready(function()
{
 $.ajax({
 type: "GET",
 url: "xml.xml",
 dataType: "xml",
 success: parseXml2
  });
});

function parseXml2(xml) {

var myArray = [];
var a = 0;

$(xml).find("Word").each(function() {
    var i = $(this).attr("id");
    a = 0;

    $(this).find("Choice").each(function() {
        alert('I:' + i + 'A:' + a);
        alert('Id:' + $(this).attr("id") + $(this).text());
        myArray[i] = [];
        var text = $(this).text();
        myArray[i][a] = text;
        a++;
    });
});

alert(myArray[0][0]);

}

parseXml2(xml);​

The code can also be found here.

Answer 1

It’s because you set myArray[i] = []; on each iteration. Set it in this loop $(xml).find("Word").each(function() { not the second one. vágod :D?

this should work:

$(xml).find("Word").each(function() {
    var i = $(this).attr("id");
    a = 0;
    myArray[i] = [];
    $(this).find("Choice").each(function() {
        alert('I:' + i + 'A:' + a);
        alert('Id:' + $(this).attr("id") + $(this).text());

        var text = $(this).text();
        myArray[i][a] = text;
        a++;
    });
});