.eslintrc.js

module.exports = {
  "env": {
    "browser": true,
    "commonjs": true,
    "es6": true,
    "node": true
  },
  "extends": "eslint:recommended",
  "rules": {
    "no-extra-semi": "warn",
    "no-unused-vars": "warn",
    "no-console": "warn",
    "no-mixed-spaces-and-tabs": "warn"
  }
};