@kalimahapps/eslint-config/rules/eslint.js

Comprehensive and configurable ESLint config for Vue 3 projects with TypeScript support

const error = {
	'accessor-pairs': {
		setWithoutGet: true,
		enforceForClassMembers: true,
	},
	'array-callback-return': {
		allowImplicit: false,
		checkForEach: false,
	},
	'brace-style': [
		'1tbs',
		{ allowSingleLine: true },
	],
	'comma-spacing': {
		before: false,
		after: true,
	},
	'indent': ['tab', { SwitchCase: 1 }],
	'function-paren-newline': 'consistent',
	'quote-props': 'consistent-as-needed',
	'quotes': [
		'single', {
			avoidEscape: true,
			allowTemplateLiterals: false,
		},
	],
	'comma-dangle': {
		arrays: 'always-multiline',
		objects: 'always-multiline',
		imports: 'never',
		exports: 'never',
		functions: 'never',
	},
	'no-self-compare': 'error',
	'no-template-curly-in-string': 'error',
	'no-unreachable-loop': 'error',
	'consistent-return': { treatUndefinedAsUnspecified: true },
	'curly': 'all',
	'default-case': 'error',
	'default-case-last': 'error',
	'no-alert': 'error',
	'no-else-return': 'error',
	'no-sequences': 'error',
	'no-var': 'error',
	'prefer-const': {
		destructuring: 'all',
	},
	'func-call-spacing': 'never',
	'no-whitespace-before-property': 'error',
	'rest-spread-spacing': 'never',
	'semi': 'always',
	'semi-spacing': {
		before: false,
		after: true,
	},
	'semi-style': 'last',
};

const warn = {
	'no-var': 'warn',
	'object-shorthand': 'properties',
	'no-unmodified-loop-condition': 'warn',
	'no-use-before-define': {
		functions: true,
		classes: true,
		variables: true,
		allowNamedExports: false,
	},
	'arrow-body-style': 'always',
	'block-scoped-var': 'warn',
	'camelcase': { properties: 'never' },
	'complexity': { max: 6 },
	'default-param-last': 'warn',
	'dot-notation': 'warn',
	'eqeqeq': 'smart',
	'func-style': 'expression',
	'guard-for-in': 'warn',
	'id-length': {
		min: 2,
		max: 30,
		exceptions: [
			// a and b are common in sort function
			'a',
			'b',

			// x and y are common in math functions
			'x',
			'y',
		],
	},
	'max-depth': { max: 3 },
	'max-lines': {
		max: 700,
		skipBlankLines: true,
		skipComments: true,
	},
	'max-lines-per-function': 100,
	'max-nested-callbacks': { max: 3 },
	'max-params': { max: 6 },
	'no-empty-function': 'warn',
	'no-floating-decimal': 'warn',
	'no-implicit-coercion': 'warn',
	'no-inline-comments': 'warn',
	'no-lone-blocks': 'warn',
	'no-lonely-if': 'warn',
	'no-loop-func': 'warn',
	'no-mixed-operators': 'warn',
	'no-multi-str': 'warn',
	'no-negated-condition': 'warn',
	'no-nested-ternary': 'warn',
	'no-octal-escape': 'warn',
	'no-param-reassign': 'warn',
	'no-script-url': 'warn',
	'no-throw-literal': 'warn',
	'no-underscore-dangle': 'warn',
	'no-unneeded-ternary': 'warn',
	'no-useless-call': 'warn',
	'no-useless-return': 'warn',
	'prefer-destructuring': 'warn',
	'prefer-named-capture-group': 'warn',
	'prefer-object-spread': 'warn',
	'prefer-promise-reject-errors': 'warn',
	'prefer-regex-literals': 'warn',
	'prefer-rest-params': 'warn',
	'prefer-spread': 'warn',
	'prefer-template': 'warn',
	'require-await': 'warn',
	'require-unicode-regexp': 'warn',
	'yoda': 'never',
	'array-bracket-newline': { multiline: true },
	'array-bracket-spacing': 'never',
	'array-element-newline': 'consistent',
	'arrow-parens': 'always',
	'arrow-spacing': {
		before: true,
		after: true,
	},
	'block-spacing': 'always',
	'dot-location': 'property',
	'function-call-argument-newline': 'consistent',
	'key-spacing': {
		beforeColon: false,
		afterColon: true,
	},
	'keyword-spacing': {
		before: true,
		after: true,
	},
	'line-comment-position': 'above',
	'linebreak-style': 'unix',
	'lines-around-comment': {
		beforeBlockComment: true,
		afterBlockComment: false,
		beforeLineComment: true,
		afterLineComment: false,
		allowBlockStart: true,
		allowBlockEnd: false,
		allowObjectStart: true,
		allowObjectEnd: false,
		allowArrayStart: true,
		allowArrayEnd: false,
	},
	'max-len': {
		code: 100,
		tabWidth: 4,
		comments: 100,
		ignoreUrls: true,
		ignoreStrings: true,
		ignoreTemplateLiterals: true,
	},
	'max-statements-per-line': { max: 1 },
	'newline-per-chained-call': { ignoreChainWithDepth: 2 },
	'no-multi-spaces': 'warn',
	'no-multiple-empty-lines': {
		max: 1,
		maxEOF: 0,
	},
	'no-trailing-spaces': {
		skipBlankLines: true,
		ignoreComments: true,
	},
	'object-curly-newline': {
		multiline: true,
		consistent: true,
	},
	'object-curly-spacing': 'always',
	'object-property-newline': { allowAllPropertiesOnSameLine: false },
	'padded-blocks': 'never',
	'space-in-parens': 'never',
	'space-infix-ops': 'warn',
	'space-unary-ops': 'warn',
	'switch-colon-spacing': {
		after: true,
		before: false,
	},
	'template-curly-spacing': 'never',
	'template-tag-spacing': 'always',
	'curly': 'warn',
};

const off = [];

export default {
	error,
	warn,
	off,
};