title: How to empty an Array of arrays in javaScript?
body: <p>I have an array which is an array of arrays. I want to empty the array as in, get rid of all the arrays with in that array. How would I accomplish that? Thanks </p>
  
  <p>I have tried setting it to new but that does not seem to work for me. I have also tried something like finalSetB.length = 0. </p>
  
  <p>I get no errors but the array is just piling up and is slowing my next procedure down and not returning the expected results. Thanks for the help in advance.</p>