create-lbgcli1/template-pc/node_modules/@babel/runtime/helpers/esm/classExtractFieldDescriptor.js

前端脚手架模板

export default function _classExtractFieldDescriptor(receiver, privateMap, action) {
  if (!privateMap.has(receiver)) {
    throw new TypeError("attempted to " + action + " private field on non-instance");
  }

  return privateMap.get(receiver);
}