How do I remove tinyMCE and then re-add it?

To cleanly remove an editor instance and avoid any errors use:

tinymce.EditorManager.execCommand('mceRemoveControl',true, editor_id);

To reinitialize the instance use:

tinymce.EditorManager.execCommand('mceAddControl',true, editor_id);

Be aware that when moving TinyMCE editors in the DOM you need to removeControl and addControl too, otherwise it results in JS errors.

As of TinyMCE 4 the methods to remove and reinitialize an instance are now…

To cleanly remove an editor instance and avoid any errors use:

tinymce.EditorManager.execCommand('mceRemoveEditor',true, editor_id);

To reinitialize the instance use:

tinymce.EditorManager.execCommand('mceAddEditor',true, editor_id);