title: How to return blank and not 0, while mapping through a 2D array using GAS?
body: <p>Right now, the code does divides each element by 100, so I can get it in the correct % format.
  However, when the element iterated is blank, it gives me 0 while this would have to be blank and I can't seem to make it right:</p>
  <p>The data in a 2D array:</p>
  <pre><code>[
   [&quot;MARLEY SC35-45 PIPE CLIP PVCu&quot;,&quot;82&quot;,1,0,11.96,-68],
   [&quot;MARLEY SC35-45 PIPE CLIP PVCu&quot;,&quot;110&quot;,1,0,10.02,],
   [&quot;MARLEY SC35-45 PIPE CLIP PVCu&quot;,&quot;160&quot;,1,0,32.62,-68]
  ]
  </code></pre>
  <p>The code I'm running returns <code>0</code>, but this would have to be blank.</p>
  <pre><code>let dataLab3 = dataLab.map(function (v) { return [v[5]/100] })
  </code></pre>
  <p>Current result:</p>
  <pre><code>-68
  -0
  -68
  </code></pre>
  <p>..while it should be:</p>
  <pre><code>-68
  
  -68
  </code></pre>
  <p>I'm not sure where I'd apply a <code>filter</code> in this case.</p>
  <p>Appreciate your help.</p>