title: UTF-8 symbol not working in angular2
body: <p>In angular2 app, I am trying to use UTF-8 symbol but it is not showing properly, 
  Do I need to add some extra package/code for using same?</p>
  
  <p>in .ts file, i'm using </p>
  
  <pre><code>title = '\xF0\x9F\x98\x81';
  </code></pre>
  
  <p>and in HTML file i am rendring this as</p>
  
  <pre><code>{{title}}
  </code></pre>
  
  <p>PS: Actually I have to use this utf-8 encode string in Primeng chart as a label, instead of number or normal string. I am not able to set any HTML element there like image etc. so thinking about setting utf-8 code to set images as string.</p>