title: How to replace text in a string without a selection
body: <p>How to take something like</p>
  
  <pre><code>var value = 'Hello there';
  </code></pre>
  
  <p>and do a jQuery replace, like</p>
  
  <pre><code>$(value).replace('there','world');
  </code></pre>
  
  <p>Every example I can find will show you how to replace text that is in an HTML object, what if it's just in JS?</p>
  
  <ul>
  <li><ul>
  - 
  </ul></li>
  </ul>
  
  <p>Is there a way to do this with jquery?<br>
  use the $ selector to select a variable?</p>