AngularJS: textarea bind to JSON object shows “object-object”

Question

I am fairly new to AngularJS.

I am trying to bind an object to a textarea.

HTML:

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      <div class="fly-panel detail-box" id="flyReply">
        <fieldset class="layui-elem-field layui-field-title" style="text-align: center;">
          <legend>9条回答</legend>        </fieldset>

        <ul class="jieda" id="jieda">
                    <li data-id="111" class="jieda-daan">
            <a name="item-1111111111"></a>
            <div class="detail-about detail-about-reply">
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                  <cite> 爱一瞬间的悲伤</cite>
                                             
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                <span>(楼主)</span>
            
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                <span>2020-12-05 04:43</span>
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            <div class="detail-body jieda-body photos">
              <p>          
<p>Try this. It worked in my case</p>

<p><code><textarea rows="5" cols="10" >{{menuItem.preset}}