.eslintrc.yml

parser: '@typescript-eslint/parser'
parserOptions:
  ecmaVersion: 2018
env:
  es6: true
  node: true
  jest: true
plugins:
  - security
  - '@typescript-eslint'
extends:
  - eslint:recommended
  - plugin:jest/recommended
  - plugin:security/recommended
  - plugin:@typescript-eslint/recommended
rules:
# possible errors
  no-template-curly-in-string: 2
  array-callback-return: 2

# best practice
  curly:
    - error
    - all
  dot-location:
    - error
    - property
  dot-notation: 2
  eqeqeq: 2
  no-caller: 2
  no-else-return: 2
  no-with: 2
  vars-on-top: 2
  wrap-iife: 2
  yoda:
    - error
    - never

  strict:
    - error
    - global

# stylistic
  array-bracket-spacing: 2
  comma-dangle: 2
  comma-spacing:
    - 2
    - after: true
  comma-style: 2
  eol-last: 2
  func-names:
    - error
    - never
  indent:
    - error
    - 4
    - SwitchCase: 1
      MemberExpression: 0
      ImportDeclaration: 1
      ObjectExpression: 1
  key-spacing: 2
  keyword-spacing: 2
  linebreak-style:
    - error
    - unix
  max-len:
    - 2
    - 130
  no-bitwise: 2
  no-mixed-spaces-and-tabs: 2
  no-multiple-empty-lines:
    - error
    - max: 1
  no-trailing-spaces: 2
  one-var:
    - error
    - never
  padding-line-between-statements:
    - error
    - blankLine: always
      prev: block-like
      next: "*"
  quote-props:
    - error
    - as-needed
  quotes:
    - error
    - single
    - allowTemplateLiterals: true
  semi:
    - error
    - always
  space-before-blocks: 2
  space-in-parens: 2
  space-infix-ops: 2
  space-unary-ops:
    - error
    - words: false
      nonwords: false

# variables
  no-use-before-define:
    - error
    - functions: false
  no-undef: 2
  no-unused-vars: 2

# ES6
  no-var: 2
  object-shorthand: 2
  prefer-const: 2

# node
  no-mixed-requires: 2
  no-path-concat: 2
  no-process-env: 2
  no-process-exit: 2

  no-console: 2

# TypeScript
  '@typescript-eslint/explicit-function-return-type': 0
  '@typescript-eslint/camelcase': 0
  '@typescript-eslint/no-explicit-any': 0

  '@typescript-eslint/no-require-imports': 2
  '@typescript-eslint/indent': 0