How to get an array of all sub-entries of an array? : <p>Is it possible to get an array of all <em>subentries</em> with a certain name of an array? For example, I have this array:  </p>

<pre><code>var array = [
  {
     "char": "a",
     "number": 5
  },
  {
     "char": "x",
     "number": 9
  },
  {
     "char": "u",
     "number": 2
  },
  {
     "char": "q",
     "number": 4
  }
];
</code></pre>

<p>How can I then get an array of all <em>number</em> (or all <em>char</em>) entries like this?</p>

<p><code>*returned array* = ["a", "x", "u", "q"];</code> or <code>*returned array* = [5, 9, 2, 4];</code></p>

<p>A simple (one-line) solution would be most helpful. Thanks in advance!</p>
