@preply/lint-configs

Installation

• yarn add -D @preply/lint-configs tslint@5 eslint@5 — explanation
• Create an .eslintrc.js:

module.exports = {
  extends: require.resolve('@preply/lint-configs/eslint.main.js'),
};

• Create a .prettierrc.js:

module.exports = {
  ...require('@preply/lint-configs/prettier'),
};

• Create a .tslint.json:

{
  "extends": [
    "@preply/lint-configs/tslint.json"
  ]
}

• Put these guys into "scripts" in your package.json:

"lint:es": "eslint src --ext .js,.jsx",
"lint:ts": "tslint  'src/**/*.ts{,x}' --config ./tslint.json --project ./tsconfig.json",
"prettify": "prettier --write \"./src/**/*.{ts,tsx,js}\"",

Tip: pass --fix into both in development:

yarn lint:es --fix
yarn lint:ts --fix

• Call it on CI (make sure there's no --fix, we want it to block non-compliant code)!