title: What are the "local" variables in Postman?
body: <p>Postman's documentation leaves a lot to be desired. In their <a href="https://www.getpostman.com/docs/postman/environments_and_globals/variables" rel="noreferrer">Variables page</a> they say:</p>
  
  <blockquote>
    <p>The following scopes are available to you:</p>
    
    <ol>
    <li>Global</li>
    <li>Environment</li>
    <li>Local</li>
    <li>Data</li>
    </ol>
  </blockquote>
  
  <p>There's information about the Global and Environment scopes, and I believe the "Data" scope is the data from a collection run. But what are the "local" variables?</p>
  
  <p>Because I'd love to have a variable that is calculated on the fly, used for the request, and then discarded. Both global and environment variables are persistent.</p>