tiptap/packages/core/src/commands/resetNodeAttributes.ts

import { NodeType } from 'prosemirror-model'
import getNodeType from '../utils/getNodeType'
import deleteProps from '../utils/deleteProps'
import { Command } from '../types'

/**
 * Resets node attributes to the default value.
 */
export const resetNodeAttributes = (typeOrName: string | NodeType, attributes: string | string[]): Command => ({ tr, state, dispatch }) => {
  const type = getNodeType(typeOrName, state.schema)
  const { selection } = tr
  const { from, to } = selection

  state.doc.nodesBetween(from, to, (node, pos) => {
    if (node.type === type && dispatch) {
      tr.setNodeMarkup(pos, undefined, deleteProps(node.attrs, attributes))
    }
  })

  return true
}