common node eslint config

.eslintrc.js

module.exports = {
  env: {
    commonjs: true,
    es6: true,
    node: true
  },
  extends: ['formidable/configurations/es6-node', 'prettier'],
  parserOptions: {
    ecmaVersion: 2018
  },
  rules: {
    strict: ['error', 'global']
  },
  overrides: [
    {
      files: ['src/**/*.test.js'],
      extends: ['plugin:jest/recommended'],
      env: {
        'jest/globals': true
      }
    }
  ]
};