title: How to take NSRange in swift?
body: <p>I am very much new to swift language. I am performing some business logic which needs to take <code>NSRange</code> from given String.</p>
  
  <p>Here is my requirement,
  Given Amount =  "144.44"
  Need <code>NSRange</code> of only cent part i.e. after "."</p>
  
  <p>Is there any API available for doing this?</p>