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I've been looking all over stackoverflow for something to help me implement an AreaChart. The problem is that I have something like this.

var items = new Array();
if ($(result).find('dato').length > 0 ) {
  items = ["Date", "Kg Emitted", "Kg Reduced"];
  $(result).find('dato').each(
    function (i) {
      var item = new Array();
      var date = $(this).find("fecha").first().text();
      var kge = parseInt($(this).find("emitido").first().text());
      var kgr = parseInt($(this).find("reducido").first().text());
      item = [date,kge,kgr];
      items.push.apply(items, item)
    }
  );
};

The problem is that I need it in a format like:

items = ["Date","Kg Emitted", "Kg reduced"], [2013-01-01, 3, 4], [2013-01-02, 1, 3], etc

I would appreciate any help on how to format this nested array, because so far I've tried items.push.apply(items, item), but it doesn't seem to work.

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I forgot to mention. This each method is getting an ajax with an xml formated var that contains fecha, emitido and reducido, which is date, Kg Emitted and Kg reduced –  Joaquin Jun 11 at 14:47
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3 Answers

up vote 1 down vote accepted

Everybody gave you the right answer here, i want to add just a little fix, the first value in your array is incorrect and is actually 3 rows.

See the difference in this fiddle

you need to add another [..] .

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I did everything you guys told me, But the graph wasn't working, so I put an alert(items[0] + " " + items[1]+ " " + items[2]); And what I got was Date,Kg Emitted,Kg Reduced Date,Kg Emitted,Kg Reduced,,04-06-2013,1,0,,05-06-2013,8,0,,06-06-2013,1,0,,07-06-2013,21,0,,08-06-‌​2013,1,0,,09-06-2013,20,0,,10-06-2013,1,0 04-06-2013,1,0 ....why is repeating data? –  Joaquin Jun 11 at 15:15
 
I just realized that I had items.push(items,item); I'm testing to see if that was it –  Joaquin Jun 11 at 15:18
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up vote 2 down vote

Just change items.push.apply(items, item) to items.push(item).

When you use apply like that you are effectively doing the same thing as Array.prototype.concat.

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Thank you. It worked perfectly :) –  Joaquin Jun 11 at 15:20
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up vote 0 down vote

Your initialization of items isn't setting it up as a nested array. Element 0 is "Date", 1 is "Kg Emitted" and 2 is "Kg Reduced".

You want to start it with

items = [["Date", "Kg Emitted", "Kg Reduced"]];

This will instead make Element 0 of the array be ["Date", "Kg Emitted", "Kg Reduced"], which is what you say you want.

Then, as others have already said, change items.push.apply(items, item) to

items.push(item);
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1  
Thank you. It worked perfectly :) –  Joaquin Jun 11 at 15:20
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