.neutrinorc.js

module.exports = {
  use: [
    [
      'neutrino-preset-airbnb-base',
      {
        eslint: {
          envs: ['browser', 'commonjs', 'node'],
          plugins: ['eslint-plugin-prettier'],
          rules: {
            // Algebraic and functional types should allow capital constructors without new
            'babel/new-cap': 'off',
            // Disable necessitating return after a callback
            'callback-return': 'off',
            // Allow using class methods with static/non-instance functionality
            // React lifecycle methods commonly do not use an instance context for anything
            'class-methods-use-this': 'off',
            // Disallow trailing commas on arrays, objects, functions, et al
            'comma-dangle': ['error', 'never'],
            // Require all requires be top-level
            // http://eslint.org/docs/rules/global-require
            'global-require': 'error',
            // Enforces error handling in callbacks (node environment)
            'handle-callback-err': 'off',
            // Allow dynamic requires
            'import/no-dynamic-require': 'off',
            // Specify the maximum length of a line in your program
            // JSX can get lengthy, so this helps alleviate that a bit
            // http://eslint.org/docs/rules/max-len
            'max-len': ['error', 120, 2, {
              ignoreUrls: true,
              ignoreComments: false,
              ignoreStrings: true,
              ignoreTemplateLiterals: true
            }],
            // Allow console during development, otherwise throw an error
            'no-console': 'off',
            // Allow extra parentheses since multiline JSX being wrapped in parens is considered idiomatic
            'no-extra-parens': 'off',
            // Disallow mixing regular variable and require declarations
            'no-mixed-requires': ['off', false],
            // Disallow use of new operator with the require function
            'no-new-require': 'error',
            // Disallow string concatenation with __dirname and __filename
            // http://eslint.org/docs/rules/no-path-concat
            'no-path-concat': 'error',
            // Allow use of process.env
            'no-process-env': 'off',
            // Allow process.exit()
            'no-process-exit': 'off',
            // Restrict usage of specified node modules
            'no-restricted-modules': 'off',
            // Allow return assign
            'no-return-assign': 'off',
            // Allowing shadowing variable that share the same context as the outer scope
            'no-shadow': 'off',
            // It makes sense to have unused expressions to avoid imperative conditionals
            'no-unused-expressions': 'off',
            // Allow use of synchronous methods (off by default)
            'no-sync': 'off',
            // Our frontend strives to adopt functional programming practices, so we prefer const over let
            'prefer-const': 'error'
          }
        }
      }
    ]
  ]
}