@atlaskit/editor-core/dist/es2019/utils/validateNodes.js

A package contains Atlassian editor core functionality

export const validNode = node => {
  try {
    node.check();
  } catch (error) {
    return false;
  }
  return true;
};

/** Validates prosemirror nodes, and returns true only if all nodes are valid */
export const validateNodes = nodes => nodes.every(validNode);