title: How to specify two numbers in multidimensional array and return 'id' value
body: <p>This is my array (I think I have written it correct):</p>
  
  <pre><code>var data = {
    0 : {'id':754,'word':'hello'},
    1 : {'id':324,'word':'bye'},
    2 : {'id':111,'word':'nice'}
  }
  </code></pre>
  
  <p>I'd like to specify one or two 'id's, e.g. <code>var nums = [324, 111];</code></p>
  
  <p>and have the script return what 'id' was not in <code>nums</code>, and therefore the output would be <strong>754</strong></p>
  
  <p>How can I do this? </p>
  
  <p>PS. I wasnt sure how to title this</p>