wrote: >=20 > Hi all,=20 >=20 > I'm doing some scripting in AE, and need to iterate through an Array of Ob= jects, so need to find out the number of items in the array in order to set u= p the loop. >=20 > I had expected to be able to get the number of items using myArray.length,= but this gives an 'undefined' error in ExtendScript. >=20 > The array has been populated with a loop in the following manner: >=20 > for (var i=3D0; i < myWidthValues.length; i++) > { > myArray[i].width=3DmyWidthValues[i]; > myArray[i].height=3DmyHeightValues[i]; > } >=20 > (this isn't the real code, just a simplified example) >=20 > And the array is functioning as expected (so for example myArray[2].width g= ives the result I expect). >=20 > Is there a reason that an Array of Objects won't return a 'length' value? >=20 > (I know this question would be better suited to a general javascript forum= , but I've trawled internet forums to no avail, and thought I'd ask here fir= st in case it's a quirk specific to ExtendScript). >=20 > Any help much appreciated! >=20 > Phil >=20 > --=20 > Phil Bearman >=20 > Phil Bearman Creative Media Solutions=20 > Motion Graphics Design >=20 > www.PhilBearman.co.uk : Nightclub & Bar ~ Production, Corporate & Events ~= DVD Products=20 >=20 > 0161 236 2581 - 9am-5pm, Monday-Friday >=20 >=20 --Apple-Mail-CF4C1F38-74BF-4E30-A72E-87F6DF2BBD09 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

You should still be able to get the le= ngth of the array using length. Object or item based. I would verify that th= e array keys (.width and .height) are actually populated correctly within th= e array. I usually make my object arrays a little different and more literal= like this. Not that it's right or wrong, just different option.

<= br>

for(var i=3D0; i<aryLen; i++){

&nbs= p;myObjectAry.push({'width': ary.width, 'height': ary.height});

}<= br>
David Torno

Technical Director

http://www.ghosttownmedia.com

O: 213.739.229= 0

C: 818.391.6060

--------------------

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-Charles Field

On Apr 23, 2014, at 9:29 AM, Phil Bearman <phil@philbearman.co.uk> wrote:

Hi all,

I'm doing some scripting in AE, and need to iterate through an Array of O= bjects, so need to find out the number of items in the array in order to set= up the loop.

I had expected to be able to get the number of items using myArra= y.length, but this gives an 'undefined' error in ExtendScript.

The array has been populated with a loop in the following manner= :

for (var i=3D0; i < myWidthValues.length; i++)

<= div>{

myArray[i].width=3DmyWidthValues[i];

myArray[i].he= ight=3DmyHeightValues[i];

}

(this isn't t= he real code, just a simplified example)

And the array is functioning as expected (so for example= myArray[2].width gives the result I expect).

Is th= ere a reason that an Array of Objects won't return a 'length' value?

(I know this question would be better suited to a genera= l javascript forum, but I've trawled internet forums to no avail, and though= t I'd ask here first in case it's a quirk specific to ExtendScript).

Any help much appreciated!

Phil=

Phi= l Bearman

Phil= Bearman Creative Media Solutions=20
Motion Graphics Design

www.PhilBearman.co.uk : Nightclub=20 & Bar ~ Production, Corpor= ate=20 & Events ~ DVD Products

0161 236 2581 - 9am-5pm, Monday-Friday

= --Apple-Mail-CF4C1F38-74BF-4E30-A72E-87F6DF2BBD09--