title: Get values from map by list of keys in groovy
body: <p>I have a list of strings, i would like to get values from a map, using this list of keys.</p>
  <p>For example:</p>
  <pre><code>ListOfKeys = [&quot;one&quot;, &quot;two&quot;, &quot;three&quot;]
  map =[&quot;one&quot;:1,&quot;two&quot;:2,&quot;three&quot;:3,&quot;four&quot;:4]
  </code></pre>
  <p>I should get only the first three because they are in the map, the rest are not.</p>
  <p>Thanks</p>