title: typescript import { RegExp }
body: <p>I want to use RegExp from typescript but in Visual Studio Code is marked as an error.</p>
  
  <pre><code>            import { RegExp } from "RegularExpressions/Regex"; // module not found.
              export class BotAnswerRegex {
                  createRegex(){
                      var regex = new RegExp('hi');
                      // regex.isMatch is marked as an error
                      var result = regex.isMatch('hi, i am peter');
                  }
              }
  </code></pre>
  
  <p>I am following the doc.
  <a href="http://electricessence.github.io/TypeScript.NET/documentation/classes/_source_system_text_regularexpressions_.regex.html" rel="nofollow noreferrer">http://electricessence.github.io/TypeScript.NET/documentation/classes/_source_system_text_regularexpressions_.regex.html</a></p>
  
  <p>Update:
  Fix variable declaration</p>