.eslintrc.js

module.exports = {
  parser: 'babel-eslint',
  extends: [
    'eslint:recommended',
    'plugin:react/recommended',
    'plugin:jsx-a11y/recommended',
    'plugin:import/errors',
    'plugin:jest/recommended',
  ],
  env: {
    browser: true,
    es6: true,
    node: true,
    'jest/globals': true,
  },
  plugins: ['react', 'jsx-a11y', 'import', 'jest'],
  parserOptions: {
    sourceType: 'module',
    ecmaVersion: 2018,
    ecmaFeatures: {
      jsx: true,
    },
  },
  settings: {
    'import/ignore': ['.json$', '.scss$', '.css$', 'node_modules'],
  },
  rules: {
    'no-case-declarations': 0,
    'react/no-did-mount-set-state': 0,
    'react/no-did-update-set-state': 0,
    'no-prototype-builtins': 0,
    'jest/consistent-test-it': 1,
    'jest/expect-expect': 1,
    'jest/lowercase-name': 1,
    'jest/no-disabled-tests': 1,
    'jest/no-focused-tests': 1,
    'jest/no-hooks': 1,
    'jest/no-identical-title': 1,
    'jest/no-jasmine-globals': 1,
    'jest/no-jest-import': 1,
    'jest/no-large-snapshots': 1,
    'jest/no-test-prefixes': 1,
    'jest/no-test-return-statement': 1,
    'jest/prefer-strict-equal': 1,
    'jest/prefer-to-be-null': 1,
    'jest/prefer-to-be-undefined': 1,
    'jest/prefer-to-have-length': 1,
    'jest/prefer-inline-snapshots': 1,
    'jest/valid-describe': 1,
    'jest/valid-expect-in-promise': 1,
    'jest/valid-expect': 1,
  },
}