.eslintrc.js

module.exports = {
  root: true,
  env: {
    node: true,
  },
  parserOptions: {
    ecmaVersion: 2017,
  },
  rules: {
    camelcase: ['error', { properties: 'never' }],
    indent: ['error', 2],
    'comma-dangle': ['error', 'always-multiline'],
    'default-case': 'error',
    eqeqeq: 'warn',
    'no-alert': 'warn',
    'no-await-in-loop': 'error',
    'no-case-declarations': 'error',
    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'no-const-assign': 'error',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'no-duplicate-imports': 'error',
    'no-unreachable': 'warn',
    'no-else-return': 'warn',
    'no-mixed-spaces-and-tabs': 'error',
    'no-multi-spaces': 'warn',
    'no-unused-vars': 'warn',
    'no-use-before-define': 'warn',
    'no-useless-return': 'warn',
    'no-var': 'error',
    'prefer-const': 'warn',
    semi: ['error', 'always'],
    'space-before-function-paren': ['error', 'always'],
    'standard/computed-property-even-spacing': 'off',
    yoda: 'error',
  },
};