title: How to include external JavaScript libraries in Angular 2?
body: <p>I am trying to include an external JS library in my Angular 2 app and trying to make all the methods in that JS file as a service in Angular 2 app.</p>
  
  <p>For eg: lets say my JS file contains.</p>
  
  <pre><code>var hello = {
     helloworld : function(){
         console.log('helloworld');
     },
     gmorning : function(){
        console.log('good morning'); 
     }
  }
  </code></pre>
  
  <p>So I am trying to use this JS file and reuse all the methods in this object and add it to a service, so that my service has public methods, which in turn calls this JS methods. I am trying to reuse the code, without reimplementing all the methods in my typescript based Angular 2 app. I am dependent on an external library, which I cant modify.
  Please help, thank you in advance.</p>