.eslintrc.js

module.exports = {
  extends: ['standard', 'standard-preact', 'plugin:prettier/recommended'],
  rules: {
    'react/jsx-uses-react': 2,
    'react/jsx-uses-vars': 2,
    'no-unused-vars': [1, { varsIgnorePattern: '^h$' }],
    'jsx-quotes': [2, 'prefer-double'],
    'no-cond-assign': 1,
    semi: 0,
    camelcase: 0,
    'comma-style': 2,
    'comma-dangle': [2, 'never'],
    indent: ['error', 2],
    'no-mixed-spaces-and-tabs': [2, 'smart-tabs'],
    'no-tabs': 0,
    'no-trailing-spaces': [2, { skipBlankLines: true }],
    'space-before-function-paren': 0,
    'max-nested-callbacks': [2, 3],
    'no-eval': 2,
    'no-implied-eval': 2,
    'no-new-func': 2,
    'guard-for-in': 2,
    eqeqeq: 2,
    'no-else-return': 2,
    'no-redeclare': 2,
    'no-dupe-keys': 2,
    radix: 2,
    strict: [2, 'never'],
    'no-shadow': 0,
    'callback-return': [1, ['callback', 'cb', 'next', 'done']],
    'no-delete-var': 2,
    'no-undef-init': 2,
    'no-shadow-restricted-names': 2,
    'handle-callback-err': 0,
    'no-lonely-if': 2,
    'keyword-spacing': 2,
    'constructor-super': 2,
    'no-this-before-super': 2,
    'no-dupe-class-members': 2,
    'no-const-assign': 2,
    'prefer-spread': 2,
    'no-useless-concat': 2,
    'no-var': 2,
    'object-shorthand': 2,
    'prefer-arrow-callback': 2,
    'import/no-webpack-loader-syntax': 0
  },
  globals: {
    IntersectionObserver: true
  }
};