title: What is the usage and purpose of $any() type cast in angular
body: <p>i Angular.io site i saw this title:</p>
  
  <p>The $any() type cast function
  Sometimes a binding expression triggers a type error during AOT compilation and it is not possible or difficult to fully specify the type. To silence the error, you can use the $any() cast function to cast the expression to the any type as in the following example:</p>
  
  <pre><code>&lt;p&gt;The item's undeclared best by date is: {{$any(item).bestByDate}}&lt;/p&gt;
  </code></pre>
  
  <p>but there is no longer description or benefit or practice in it.</p>
  
  <ol>
  <li>What's that technically? </li>
  <li>When we have to and need to use of this
  stuff?</li>
  </ol>