How to find a uppercase elements of array : <p>I have array of letters like this one:</p>

<pre><code>[ 'E', 'v', 'a', 'n', ' ', 'C', 'o', 'l', 'e' ]
</code></pre>

<p>How to take only uppercase elements (in this example it will be 'E' and 'C')</p>
