title: Mongodb findAndModify each document
body: <p>I have a collection that contains a number of documents each document contains an array and I want to remove the lowest value from this Array for each document. </p>
  
  <p>What would be the most efficient way to achieve this? Is findAndModify capable of performing this type of operation?</p>
  
  <p>Do I need to use forEach?</p>