title: How to import an external script in my Angular library?
body: <p>I am trying to export some business logic ts files of my Angular application into an Angular library. Unfortunately, I need to use a Javascript file to connect to a proprietary service build by other people, which is only available as a pure javascript file and requires jQuery. 
  Without libraries (when I was using the script in my angular application), I solved this by adding these js files to the .angular.json under the "scripts" section.</p>
  
  <p>The js file is huge so I could not consider the option to rewrite in typescript.</p>
  
  <p>Is there some way to import and use a javascript file in my ng library?</p>
  
  <p>Thanks
  Karan</p>