gistfile1.txt

.babelrc

{
  "presets": [
    "@babel/preset-env",
    "@babel/preset-react"
  ],
  "plugins": [["transform-class-properties",{ "spec": true }]]
}

.eslintrc

{
  "parser": "babel-eslint",
  "extends": [
    "eslint:recommended",
    "plugin:react/recommended"
  ],
  "globals": {
    "module": true,
    "document": true
  }
}