title: How do I replace part of a text (string) by another in appInventor?
body: <p>I am using appInventor to develop an app. How do I replace part of a text string by another. This should be pretty straight forward. Had I used Perl,  this is what I will do: </p>
  
  <pre><code>$my_str =~ s/abc/xyz/;
  </code></pre>
  
  <p>Thanks. </p>