Commands for initial react app with eslint, editorconfig, transpiler, prettier...

.editorconfig

root = true

[*]
end_of_line = lf
indent_style = space
indent_size = 2
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es6: true,
  },
  extends: [
    'airbnb',
    'prettier',
    'prettier/react'
  ],
  globals: {
    Atomics: 'readonly',
    SharedArrayBuffer: 'readonly',
  },
  parser:'babel-eslint',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 2018,
    sourceType: 'module',
  },
  plugins: [
    'react',
    'prettier'
  ],
  rules: {
    'prettier/prettier': 'error',
    'react/jsx-filename-extension': [
      'warn',
      { extensions: ['.jsx', '.js'] }
    ],
    'import/prefer-default-export': 'off'
  },
};

.prettierrc

{
  "singleQuote": true,
  "trailingComma": "es5"
}

start-commands.md

Config for .editorconfig

root = true

[*] end_of_line = lf
indent_style = space
indent_size = 2
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

Install Modules

yarn add eslint -D
yarn eslint --init

• check syntax, find problems, and enforce code style
• Javascript modules (import/export)
• React
• Browser
• Use a popular style guide
• Airbnb
• Javascript
• Y for all

After installation is done delete package-lock.json

yarn
yarn add prettier eslint-config-prettier eslint-plugin-prettier babel-eslint -D

Edit .eslintrc.js

module.exports = {
env: {
browser: true,
es6: true,
},
extends: [
'airbnb',
'prettier',
'prettier/react'
],
globals: {
Atomics: 'readonly',
SharedArrayBuffer: 'readonly',
},
parser:'babel-eslint',
parserOptions: {
ecmaFeatures: {
jsx: true,
},
ecmaVersion: 2018,
sourceType: 'module',
},
plugins: [
'react',
'prettier'
],
rules: {
'prettier/prettier': 'error',
'react/jsx-filename-extension': [
'warn',
{ extensions: ['.jsx', '.js'] }
],
'import/prefer-default-export': 'off'
},
};

Create new file on root path with name .prettierrc, add:

{
"singleQuote": true,
"trailingComma": "es5"
}