title: Can I import functions into a typescript class file?
body: <p>I have Typescript classes that look like this:</p>
  
  <pre><code>class WordService implements IWordService {
  
      wordCreatedById: number = 0;
      wordModifiedById: number = 0;
  
      static $inject = [
          "$http",
          "$q",
          ...
      ];
  
      constructor(
          public $http: ng.IHttpService,
          public $q: ng.IQService,
          ...
      ) {
  
      }
  
      wordClear = (): void =&gt; {
          this.word = null;
          this.wordBase = null;
      }
  
      ...
  
  }
  </code></pre>
  
  <p>My class files have become very long now as I defined more and more functions
  like wordClear.</p>
  
  <p>Is there any way that I could move functions into another file and import them
  into my class?</p>