title: Get column from a two dimensional array
body: <p>How can I retrieve a column from a <strong>2-dimensional array</strong> and not a single entry?
  I'm doing this because I want to search for a string in one of the columns only so if there is another way to accomplish this please tell me.  </p>
  
  <p>I'm using the array defined this way:</p>
  
  <pre><code>var array=[];
  </code></pre>
  
  <p>At the end the size of this array is 20(col)x3(rows) and I need to read the first row and check the existence of some phrase in it.</p>