title: Knockout : foreach data not display in HTML
body: <p>I want to display multi dimentional ko observable array data in html. But, i didn't get output.</p>
  
  <p>My code :</p>
  
  <pre><code>&lt;!-- ko if: ($parent.cust_opt_avail() === 1) --&gt;
  &lt;!-- ko foreach: $parent.customVal() --&gt;
  &lt;div class="product-custom-option-select"&gt;
      &lt;p class="options-label" data-bind="text:key"&gt;&lt;/p&gt;
      &lt;p class="options-label" data-bind="text:custom_option_select_text"&gt;&lt;/p&gt;
  &lt;/div&gt;
  &lt;!-- /ko --&gt;
  &lt;!-- /ko --&gt;
  </code></pre>
  
  <p><strong>cust_opt_avail()</strong> is ko observable variable.
  <strong>customVal</strong> is ko observable array.</p>
  
  <p>output of customVal is :</p>
  
  <p><a href="https://i.stack.imgur.com/Y0V2p.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Y0V2p.png" alt="enter image description here"></a></p>
  
  <p>I want to display <strong>custom_option_select_text</strong> and display <strong>key</strong> name on first p tag.</p>
  
  <p>How to do it ?</p>
  
  <p><strong>Expected Result :</strong></p>
  
  <p><a href="https://i.stack.imgur.com/SG7tY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/SG7tY.png" alt="enter image description here"></a></p>
  
  <p>please help me.</p>