title: How to check if a string contains an other string (substring) in robot framework?
body: <p>How to check if a string contains an other string in robot framework?</p>
  
  <p>Something like</p>
  
  <pre><code>${bool} | String Contains | Hello World | World
  </code></pre>
  
  <p><a href="http://robotframework.org/robotframework/latest/libraries/String.html#Get%20Substring" rel="noreferrer">Get Substring</a> doesn't help, because it needs a start index.</p>