webpack.HashedModuleIdsPlugin is not a constructor

这个报错是因为webpack版本的问题，

用的webpack5的版本，却在看4的教程....确实该报错。

new webpack.ids.HashedModuleIdsPlugin({
  context: __dirname,
  hashFunction: 'sha256',
  hashDigest: 'hex',
  hashDigestLength: 20,
});
https://webpack.docschina.org/plugins/hashed-module-ids-plugin/#usage
参考
https://blog.csdn.net/qq_27868061/article/details/118938648