.eslintrc.js

/* eslint max-lines: "off" */

module.exports = {
	env: {
		browser: true,
		commonjs: true,
		es6: true,
		node: true,
	},
	extends: 'eslint:recommended',
	parserOptions: { sourceType: 'module' },
	rules: {
		'accessor-pairs': ['error'],
		'array-bracket-spacing': ['warn', 'never'],
		'array-callback-return': ['warn'],
		'arrow-body-style': ['error'],
		'arrow-parens': ['error', 'always'],
		'arrow-spacing': ['error', {
			after: true,
			before: true,
		}],
		'block-scoped-var': ['off'],
		'block-spacing': ['warn', 'always'],
		'brace-style': ['warn', 'stroustrup', { allowSingleLine: true }],
		'callback-return': ['warn'],
		'camelcase': ['off'], //<- consider error, never
		'capitalized-comments': ['off'],
		'class-methods-use-this': ['off'],
		'comma-dangle': ['error', 'always-multiline'],
		'comma-spacing': ['error'],
		'comma-style': ['error'],
		'complexity': ['warn', { max: 15 }],
		'computed-property-spacing': ['error'],
		'consistent-return': ['off'],
		'consistent-this': ['error'],
		'constructor-super': ['error'],
		'curly': ['error', 'all'],
		'default-case': ['off'],
		'dot-location': ['error', 'property'],
		'dot-notation': ['error'],
		'eol-last': ['warn', 'always'],
		'eqeqeq': ['error'],
		'func-call-spacing': ['error', 'never'],
		'func-name-matching': ['off'],
		'func-names': ['off'],
		'func-style': ['off'],
		'generator-star-spacing': ['error', 'after'],
		'global-require': ['error'],
		'guard-for-in': ['warn'],
		'handle-callback-err': ['warn'],
		'id-blacklist': ['off'],
		'id-length': ['off'],
		'id-match': ['off'],
		'indent': ['error', 'tab'],
		'init-declarations': ['off'],
		'jsx-quotes': ['off'],
		'key-spacing': ['error'],
		'keyword-spacing': ['error', { after: true }],
		'line-comment-position': ['off'],
		'linebreak-style': ['error', 'unix'],
		'lines-around-comment': ['off'],
		'lines-around-directive': ['error'],
		'max-depth': ['warn', { max: 4 }],
		'max-len': ['error', {
			code: 100,
			ignoreRegExpLiterals: true,
			ignoreStrings: true,
			ignoreTemplateLiterals: true,
			ignoreUrls: true,
			tabWidth: 2,
		}],
		'max-lines': ['error', {
			max: 200,
			skipBlankLines: true,
			skipComments: true,
		}],
		'max-nested-callbacks': ['warn', { max: 5 }],
		'max-params': ['warn', { max: 3 }],
		'max-statements': ['warn', { max: 20 }],
		'max-statements-per-line': ['error', { max: 2 }],
		'multiline-ternary': ['off'],
		'new-cap': ['off'],
		'new-parens': ['off'],
		'newline-after-var': ['warn', 'always'],
		'newline-before-return': ['warn'],
		'newline-per-chained-call': ['warn', { ignoreChainWithDepth: 3 }],
		'no-alert': ['error'],
		'no-array-constructor': ['error'],
		'no-await-in-loop': ['warn'],
		'no-bitwise': ['off'],
		'no-caller': ['error'],
		'no-case-declarations': ['error'],
		'no-catch-shadow': ['error'],
		'no-class-assign': ['error'],
		'no-cond-assign': ['error', 'except-parens'],
		'no-confusing-arrow': ['error', { allowParens: true }],
		'no-console': ['error'],
		'no-const-assign': ['error'],
		'no-constant-condition': ['error'],
		'no-continue': ['off'],
		'no-control-regex': ['off'],
		'no-debugger': ['error'],
		'no-delete-var': ['error'],
		'no-div-regex': ['error'],
		'no-dupe-args': ['error'],
		'no-dupe-class-members': ['error'],
		'no-dupe-keys': ['error'],
		'no-duplicate-case': ['error'],
		'no-duplicate-imports': ['error'],
		'no-else-return': ['off'],
		'no-empty': ['error'],
		'no-empty-character-class': ['error'],
		'no-empty-function': ['off'],
		'no-empty-pattern': ['error'],
		'no-eq-null': ['error'],
		'no-eval': ['error'],
		'no-ex-assign': ['error'],
		'no-extend-native': ['error'],
		'no-extra-bind': ['error'],
		'no-extra-boolean-cast': ['error'],
		'no-extra-label': ['warn'],
		'no-extra-parens': ['error', 'functions'],
		'no-extra-semi': ['error'],
		'no-fallthrough': ['error'],
		'no-floating-decimal': ['error'],
		'no-func-assign': ['error'],
		'no-global-assign': ['error'],
		'no-implicit-coercion': ['error'],
		'no-implicit-globals': ['warn'],
		'no-implied-eval': ['error'],
		'no-inline-comments': ['off'],
		'no-inner-declarations': ['error', 'functions'],
		'no-invalid-regexp': ['error'],
		'no-invalid-this': ['error'],
		'no-irregular-whitespace': ['error'],
		'no-iterator': ['error'],
		'no-label-var': ['error'],
		'no-labels': ['off'],
		'no-lone-blocks': ['error'],
		'no-lonely-if': ['error'],
		'no-loop-func': ['error'],
		'no-magic-numbers': ['error', {
			enforceConst: true,
			ignore: [-1, 0, 1],
			ignoreArrayIndexes: true,
		}],
		'no-mixed-operators': ['off'],
		'no-mixed-requires': ['off'],
		'no-mixed-spaces-and-tabs': ['error', 'smart-tabs'],
		'no-multi-assign': ['off'],
		'no-multi-spaces': ['error'],
		'no-multi-str': ['off'],
		'no-multiple-empty-lines': ['error', {
			max: 1,
			maxBOF: 0,
			maxEOF: 1,
		}],
		'no-negated-condition': ['off'],
		'no-nested-ternary': ['off'],
		'no-new': ['warn'],
		'no-new-func': ['error'],
		'no-new-object': ['error'],
		'no-new-require': ['warn'],
		'no-new-symbol': ['error'],
		'no-new-wrappers': ['error'],
		'no-obj-calls': ['error'],
		'no-octal-escape': ['error'],
		'no-param-reassign': ['error'],
		'no-path-concat': ['warn'],
		'no-plusplus': ['off'],
		'no-process-env': ['error'],
		'no-process-exit': ['error'],
		'no-proto': ['error'],
		'no-prototype-builtins': ['off'],
		'no-redeclare': ['error'],
		'no-regex-spaces': ['off'],
		'no-restricted-globals': ['off'],
		'no-restricted-imports': ['off'],
		'no-restricted-modules': ['off'],
		'no-restricted-properties': ['off'],
		'no-restricted-syntax': ['off'],
		'no-return-assign': ['error', 'except-parens'],
		'no-return-await': ['error'],
		'no-script-url': ['error'],
		'no-self-assign': ['error'],
		'no-self-compare': ['error'],
		'no-sequences': ['error'],
		'no-shadow': ['warn', { builtinGlobals: true }],
		'no-shadow-restricted-names': ['error'],
		'no-sparse-arrays': ['error'],
		'no-sync': ['warn'],
		'no-tabs': ['off'],
		'no-template-curly-in-string': ['error'],
		'no-ternary': ['off'],
		'no-this-before-super': ['error'],
		'no-throw-literal': ['error'],
		'no-trailing-spaces': ['error'],
		'no-undef': ['error'],
		'no-undef-init': ['off'],
		'no-undefined': ['off'],
		'no-underscore-dangle': ['off'],
		'no-unexpected-multiline': ['error'],
		'no-unmodified-loop-condition': ['warn'],
		'no-unneeded-ternary': ['error', { defaultAssignment: false }],
		'no-unreachable': ['error'],
		'no-unsafe-finally': ['error'],
		'no-unsafe-negation': ['error'],
		'no-unused-expressions': ['error', {
			allowShortCircuit: true,
			allowTernary: false,
		}],
		'no-unused-labels': ['error'],
		'no-unused-vars': ['error', {
			args: 'all',
			argsIgnorePattern: '^_',
			caughtErrorsIgnorePattern: '^_',
			ignoreRestSiblings: true,
			vars: 'all',
			varsIgnorePattern: '^_',
		}],
		'no-use-before-define': ['error', {
			classes: false,
			functions: false,
		}],
		'no-useless-call': ['error'],
		'no-useless-computed-key': ['error'],
		'no-useless-concat': ['warn'],
		'no-useless-constructor': ['error'],
		'no-useless-escape': ['warn'],
		'no-useless-rename': ['warn'],
		'no-useless-return': ['warn'],
		'no-var': ['off'],
		'no-void': ['warn'],
		'no-warning-comments': ['warn'],
		'no-whitespace-before-property': ['error'],
		'no-with': ['error'],
		'object-curly-newline': ['error', {
			minProperties: 3,
			multiline: true,
		}],
		'object-curly-spacing': ['error', 'always'],
		'object-property-newline': ['off'],
		'object-shorthand': ['off'],
		'one-var': ['off'],
		'one-var-declaration-per-line': ['error', 'initializations'],
		'operator-assignment': ['off'],
		'operator-linebreak': ['error', 'before'],
		'padded-blocks': ['error', 'never'],
		'prefer-arrow-callback': ['warn'],
		'prefer-const': ['warn'],
		'prefer-destructuring': ['off'],
		'prefer-numeric-literals': ['warn'],
		'prefer-promise-reject-errors': ['error'],
		'prefer-rest-params': ['warn'],
		'prefer-spread': ['warn'],
		'prefer-template': ['warn'],
		'quote-props': ['error', 'consistent-as-needed'],
		'quotes': ['error', 'single', { allowTemplateLiterals: true }],
		'radix': ['error', 'always'],
		'require-await': ['error'],
		'require-jsdoc': ['off'],
		'require-yield': ['error'],
		'rest-spread-spacing': ['error', 'never'],
		'semi': ['error', 'never'],
		'semi-spacing': ['error', {
			after: true,
			before: false,
		}],
		'sort-imports': ['off'],
		'sort-keys': ['warn', 'asc', {
			caseSensitive: true,
			natural: true,
		}],
		'sort-vars': ['warn'],
		'space-before-blocks': ['error', 'always'],
		'space-before-function-paren': ['error', {
			anonymous: 'always',
			asyncArrow: 'always',
			named: 'never',
		}],
		'space-in-parens': ['error', 'never'],
		'space-infix-ops': ['error', { int32Hint: false }],
		'space-unary-ops': ['error', {
			nonwords: false,
			words: true,
		}],
		'spaced-comment': ['off'],
		'strict': ['error'],
		'symbol-description': ['error'],
		'template-curly-spacing': ['off'],
		'template-tag-spacing': ['error', 'always'],
		'unicode-bom': ['error'],
		'use-isnan': ['error'],
		'valid-jsdoc': ['warn'],
		'valid-typeof': ['error'],
		'vars-on-top': ['off'],
		'wrap-iife': ['error', 'inside', { functionPrototypeMethods: true }],
		'wrap-regex': ['off'],
		'yield-star-spacing': ['error', 'after'],
		'yoda': ['off'],
	},
}