verdaccio/.babelrc

{
  "presets": [ [
    "@babel/env",
    {
      "useBuiltIns": "usage",
      "corejs": {
        "version": 3, "proposals": true
      },
      "targets": {
        "node": 10
      }
    }
  ],
    "@babel/typescript"
  ],
  "plugins": [
    "babel-plugin-dynamic-import-node",
    "@babel/proposal-class-properties",
    "@babel/proposal-object-rest-spread",
    "@babel/plugin-proposal-optional-chaining",
    "@babel/plugin-proposal-nullish-coalescing-operator"
    ],
  "ignore": [
    "**/*.d.ts"
  ]
}