title: Hide 'Zero' value in input using typescript and Angular 2
body: <pre><code>&lt;input type="text" class="form-control"
                     id="transactionAmount"
                     maxlength="10"
                     OnlyNumber="true" 
                     [(ngModel)]="userBalance.transactionAmount" 
                     name="transactionAmount"
                     placeholder="Amount"
                     required
                     #transactionAmount="ngModel"&gt;
  </code></pre>
  
  <ol>
  <li>Here I have to hide zero amount while user entering the values.</li>
  <li>If he enters all zero's then only we have to hide not in cases like 20,30,100 etc...</li>
  <li>I'm using Angular 2.  </li>
  </ol>