title: How to push to an array in a particular position?
body: <p>I'm trying to efficiently write a statement that pushes to position 1 of an array, and pushes whatever is in that position, or after it back a spot.</p>
  
  <pre><code>array = [4,5,9,6,2,5]
  
  #push 0 to position 1
  
  array = [4,0,5,9,6,2,5]
  
  #push 123 to position 1
  
  array = [4,123,0,5,9,6,2,5]
  </code></pre>
  
  <p>What is the best way to write this? (javascript or coffeescript acceptable)</p>
  
  <p>Thanks!</p>