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How to get the size (length) of two-dimensional (2D) array in JavaScript

1 Answer

0 votes
var arr = [
  [11, 32, 13, 23, 1],
  [20, 80, 90, 87, 4],
  [83, 23, 32, 99, 8]
];
  
document.write(arr.length + "<br />");
document.write(arr[0].length + "<br />");



/*
run:
  
3
5
   
*/

 




answered Oct 8 by avibootz
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