title: Pattern validation expression, first letters capital in angular?
body: <p>I am working with an input field and I want the user first letter to be capital.
  Before this, I needed a pattern that allows the user to put the only uppercase letter for that I used </p>
  
  <pre><code>pattern="[A-Z ]*"
  </code></pre>
  
  <p>Is there any pattern to check if the first letter of the user is capital.
  The result I want is :</p>
  
  <pre><code>testing =&gt; is wrong
  Testing =&gt; is good.
  Testing Done =&gt;is good also.
  </code></pre>