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How to create a zero-filled JavaScript array?

To create a zero-filled JavaScript array, use the Unit8Array typed array.

Example

You can try to run the following code:

<html>
   <body>
      <script>
         var arr1 = ["marketing", "technical", "finance", "sales"];
         var arr2 = new Uint8Array(4);
         document.write(arr1);
         document.write("<br>Zero filled array: "+arr2);
      </script>
   </body>
</html

Output

marketing,technical,finance,sales
Zero filled array: 0,0,0,0