import { MarkdownSerializer } from 'prosemirror-markdown'; import editorExtensions from './editor_extensions'; const nodes = editorExtensions .filter(extension => extension.type === 'node') .reduce( (ns, { name, toMarkdown }) => ({ ...ns, [name]: toMarkdown, }), {}, ); const marks = editorExtensions .filter(extension => extension.type === 'mark') .reduce( (ms, { name, toMarkdown }) => ({ ...ms, [name]: toMarkdown, }), {}, ); export default new MarkdownSerializer(nodes, marks);