Knockout View

index.html

<div>
  <input data-bind="value: address"/>
  <button data-bind="click: search">Search</button>
</div>
<!-- ko if: list().length > 0 -->
<h5 data-bind="text: list().length"></h5>
<!-- /ko -->
<!-- ko foreach: list -->
    <div class="result" data-bind="text: addr"></div>
<!-- /ko -->