javascript - Redactor - Uncaught TypeError: Cannot read property 'insert' of undefined -


i'm trying use redactor in project. want add text editor upon button click.

the api says can this:

function inserthtml() {     var html = '<h3>inserted</h3>';     $('#redactor').redactor('insert.html', html); }

well, code looks this:

<button onclick="inserthtml();">insert</button>  <script type="text/javascript">     function inserthtml()     {         var html = '<h3>inserted</h3>';         $('.redactor-box').redactor('insert.html', html);     } </script>

redactor editor:

<div class="redactor-box"> <ul class="redactor-toolbar" id="redactor-toolbar-0" style= "position: relative; width: auto; top: 0px; left: 0px; visibility: visible;"> <li>         <a class="re-icon re-bold" href="#" rel="bold" tabindex="-1"></a>     </li>      <li>         <a class="re-icon re-italic" href="#" rel="italic" tabindex=         "-1"></a>     </li>      <li>         <a class="re-icon re-deleted" href="#" rel="deleted" tabindex=         "-1"></a>     </li>      <li>         <a class="re-icon re-unorderedlist" href="#" rel="unorderedlist"         tabindex="-1"></a>     </li>      <li>         <a class="re-icon re-orderedlist" href="#" rel="orderedlist"         tabindex="-1"></a>     </li>      <li>         <a class="re-icon re-outdent" href="#" rel="outdent" tabindex=         "-1"></a>     </li>      <li>         <a class="re-icon re-indent" href="#" rel="indent" tabindex=         "-1"></a>     </li>      <li>         <a class="re-icon re-image" href="#" rel="image" tabindex="-1"></a>     </li>      <li>         <a class="re-icon re-file" href="#" rel="file" tabindex="-1"></a>     </li>      <li>         <a class="re-icon re-link" href="#" rel="link" tabindex="-1"></a>     </li>      <li>         <a class="re-icon re-horizontalrule" href="#" rel="horizontalrule"         tabindex="-1"></a>     </li>      <li>         <a class="re-icon re-mathematik redactor-btn-image" href="#" rel=         "mathematik" tabindex="-1"></a>     </li> </ul>  <div class="redactor-editor redactor-placeholder" contenteditable="true" dir="ltr" style="min-height: 300px;">     <p>​</p> </div> <textarea class="redactor-box" cols="40" data-redactor-options= "{&quot;lang&quot;: &quot;en&quot;, &quot;fileupload&quot;: &quot;/redactor/upload/file/&quot;, &quot;imageupload&quot;: &quot;/redactor/upload/image/&quot;}" dir="ltr" id="id_body" name="body" placeholder="vsebina vprašanja.." rows= "10" style="display: none;">

error i'm getting:

uncaught typeerror: cannot read property 'insert' of undefined(anonymous function) @ redactor.js:47n.extend.each @ jquery-2.1.4.min.js:2n.fn.n.each @ jquery-2.1.4.min.js:2$.fn.redactor @ redactor.js:39inserthtml @ (index):366onclick @ (index):205

what doing wrong?

i'm going assume it's because example uses jquery id lookup, returns single element, , implementation using jquery class lookup returns array of elements.

either use: $('.redactor-box')[0] or change element's class in question id, , use $('#redactor-box').


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