title: Google script to push 1d array into 2d array
body: <p>I have an array of URLs pulled from the files in a folder, which I need to add to another array. </p>
  
  <p>Array1 = [url1 , url2 , url3]</p>
  
  <p>Array2 = [ [1 , 2] , [3 , 4] , [5 , 6] ]</p>
  
  <p>I need the URL's to be distributed into each index, like:</p>
  
  <p>Array2 = [ [url1 , 1 , 2] , [url2 , 3 , 4] , [url3 , 5 , 6] ] </p>
  
  <p>Do I need to use a for loop, or concat, I'm unsure. </p>
  
  <p>I've tried <code>Array2.push([Array1])</code>, but end up with all of Array1 in the first index position, rather than distributed through the array. </p>