title: Removing the first 3 characters from a string
body: <p>What is the most efficient way to remove the first 3 characters of a string?</p>
  
  <p>For example:</p>
  
  <pre>
  'apple' change to 'le'  
  'a cat' change to 'at'  
  ' a b c'change to 'b c'
  </pre>