env:
  browser: true
  es6: true

# Using the highly recommended rules of Airbnb https://github.com/airbnb/javascript
extends: airbnb

ignorePatterns: ["*/dictionary/*"]

rules:
  # we want to leave out parentheses whenever we like at arrow functions
  arrow-parens: off
  # we want need empty superclass methods
  class-methods-use-this: off
  # no trailing commas
  comma-dangle:
    - warn
    - never
  # don't just warn, instead error if double =
  eqeqeq: error
  # we allow a line break after function's opening parentheses e.g. for giving arguments their own lines
  function-paren-newline: off
  # this project doesn't use a bundler and the modules are called by the browser which needs the file extensions
  import/extensions: off
  # don't force default exports in modules. it's annoying
  import/prefer-default-export: off
  import/no-unresolved: off
  indent:
    - warn
    - 4
    - MemberExpression: 0
  # increase to 120 chars because of 4 indentation
  max-len:
    - warn
    - 120
  # allow conditional expression at arrow function
  no-confusing-arrow: off
  # don't error, just warn if console.log
  no-console: warn
  # don't error, just warn in case of debugging - maybe an error would be saver for production tough..
  no-debugger: warn
  no-empty: warn
  # Eval is evil
  no-eval: error
  # sometimes lonely ifs are more readable
  no-lonely-if: off
  # allow overwriting properties of arguments
  no-param-reassign: off
  # we want to use plusplus
  no-plusplus: off
  # we need template curly inside of string for the custom views
  no-template-curly-in-string: error
  # don't just warn, instead error if unused vars
  no-undef: error
  no-unused-vars:
    - error
    - argsIgnorePattern: "^_"
  # some functions need to call each other, so we have to disable this
  no-use-before-define: off
  # don't error, just warn at padding in blocks (empty lines between `{` and `}` )
  padded-blocks: warn
  # don't error, just warn if not using const
  prefer-const: warn
  # don't error, just warn
  prefer-destructuring: warn
  # don't error, just warn if concatenating strings with the + operator
  prefer-template: warn
  # airbnb has a dependency of react require, which gives an annoying warning
  react/require-extension: off
  # we don't want semicolons (unless needed)
  semi:
    - error
    - never
  # a space between a function's name and it's opening parentheses is weird
  space-before-function-paren:
    - warn
    - never
  object-curly-newline:
    - off
  prefer-arrow-callback:
    - off
  camelcase:
    - off
  no-continue: off
  no-underscore-dangle: off
  func-names: off
  array-callback-return: off