A Pen by Balazs Ree.

index.html

<div>
  <h1>TinyMCE setting initial content from js</h1>
    <form method="post" action="something">
      <textarea name="content" cols="100" rows="15">Type Your Text</textarea>
        <input type="submit" value="Save" />
    </form>
</div>

script.js

$('textarea').html('<p>New content</p>');
tinymce.init({
  selector: "textarea"
});

TinyMCE-setting-initial-content-from-js.markdown

TinyMCE setting initial content from js

It's better to set initial content directly on the DOM instead of editor.setContent(), because the latter one will fail before the editor has completely been set up.

A Pen by Balazs Ree on CodePen.

License.