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How to Paste Content as Plain Text Into the Summernote Editor?

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To paste content as plain text into the Summernote editor, we add our own onPaste callback that calls the document.execCommand method.

For instance, we can write:

<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css" />
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/summernote/0.8.18/summernote.min.js" integrity="sha512-kZv5Zq4Cj/9aTpjyYFrt7CmyTUlvBday8NGjD9MxJyOY/f2UfRYluKsFzek26XWQaiAp7SZ0ekE7ooL9IYMM2A==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/summernote/0.8.18/summernote-bs4.min.css" integrity="sha512-pDpLmYKym2pnF0DNYDKxRnOk1wkM9fISpSOjt8kWFKQeDmBTjSnBZhTd41tXwh8+bRMoSaFsRnznZUiH9i3pxA==" crossorigin="anonymous" referrerpolicy="no-referrer" />

<div id="summernote">Hello Summernote</div>

to add the jQuery and Summernote libraries and the Bootstrap and Summernote CSS.

We also add the div that we will use for the Summernote editor.

Then we write:

$('#summernote').summernote({
  callbacks: {
    onPaste(e) {
      const bufferText = ((e.originalEvent || e).clipboardData || window.clipboardData).getData('Text');
      e.preventDefault();
      document.execCommand('insertText', false, bufferText);
    }
  }
});

We call summernote with an object that has the callbacks.onPaste method.

In the method, we get the pasted text with:

const bufferText = ((e.originalEvent || e).clipboardData || window.clipboardData).getData('Text');

Then we call e.preventDefault to stop the default behavior.

Finally, we write:

document.execCommand('insertText', false, bufferText);

to paste plain text.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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