import Parchment from 'parchment'; class Break extends Parchment.Embed { static value() { return undefined; } insertInto(parent, ref) { if (parent.children.length === 0) { super.insertInto(parent, ref); } else { this.remove(); } } length() { return 0; } value() { return ''; } } Break.blotName = 'break'; Break.tagName = 'BR'; export default Break;