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Increment integer on loop

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matthew.wren

24 Aug, 2016 06:39 PM

I know this should be a pretty easy task but I can't seem increase an integer value by 1 on each loop. I'm pretty sure I'm doing something wrong but here's my loop:

#foreach($video in $_XPathTool.selectNodes($contentRoot, "/system-data-structure/featured-videos/video"))
     #set ($num = $_MathTool.toNumber(1))
          <div role="tabpanel" class="tab-pane active" id="youtube-${num}">
          </div>
     #set ($num = $_MathTool.add(1))    
#end

1. 1 Posted by Ryan Griffith on 24 Aug, 2016 07:20 PM

   

   Hi Matthew,

   Loops actually have an existing iterator that can be accessed using $foreach.index. For additional information about available properties within loops, see this page.

   Please let me know if you have any questions.

   Thanks!

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2. 2 Posted by matthew.wren on 24 Aug, 2016 07:26 PM

   

   oh that's amazing! is there anyway to make the iterator start at 1 rather than 0?

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3. 3 Posted by Ryan Griffith on 24 Aug, 2016 08:43 PM

   

   Hi Matthew,

   You would have to implement something similar to what you were doing and add one to the iterator:

   #set ($videos = $_XPathTool.selectNodes($contentRoot, "/system-data-structure/featured-videos/video"))
   #foreach($video in $videos)
             <div role="tabpanel" class="tab-pane active" id="youtube-${_MathTool.add($foreach.index, 1)}">
             </div>
   #end
   

   Please let me know if you have any questions.

   Thanks!

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