.prettierrc

{
  "arrowParens": "avoid",
  "trailingComma": "es5",
  "useTabs": false,
  "semi": true,
  "singleQuote": false,
  "bracketSpacing": true,
  "jsxBracketSameLine": false,
  "tabWidth": 2,
  "printWidth": 80,
  "overrides": [{
    "files": [
      "**/{codemods,eslint,packages}/*/{src,test}/**/*.{js,ts}"
    ],
    "excludeFiles": ["**/packages/babel-helpers/src/helpers/**/*.js"],
    "options": {
      "trailingComma": "all"
    }
  }, {
    "files": "**/packages/babel-helpers/src/helpers/**/*.js",
    "options": {
      "trailingComma": "es5"
    }
  }, {
    "files": [
      "**/{codemods,eslint,packages}/*/test/fixtures/**/*.{js,ts}"
    ],
    "options": {
      "trailingComma": "es5"
    }
  }]
}