title: Javascript Remove an array element and reorder the remaining elements
body: <p>I have an array with a fixed length of 6.</p>
  
  <p>I want to remove the first element from the array, then shift all the elements left by 1, but the length of the array should remain as 6 (the 6th position of the array can be undefined)</p>
  
  <p>I tried using <code>splice</code> but the array length was reduced to 5 which is not what I want to happen.</p>
  
  <p>What is the best approach to achieve the above?</p>