.eslintrc.js

module.exports = {
	parser: '@typescript-eslint/parser',
	parserOptions: {
		project: './tsconfig.json',
		tsconfigRootDir: __dirname,
	},
	plugins: ['@typescript-eslint', 'jest', 'import'], //, "prettier"],
	extends: [
		'eslint:recommended',
		'plugin:@typescript-eslint/eslint-recommended',
		'plugin:@typescript-eslint/recommended',
		'plugin:@typescript-eslint/recommended-requiring-type-checking',
		//"prettier/@typescript-eslint",
		'plugin:import/errors',
		'plugin:import/typescript',
		//"plugin:prettier/recommended"
	],
	rules: {
		// TYPESCRIPT ADDITIONAL RULES - ADDING MORE RULES TO INCREASE STRICTNESS
		complexity: [2, 8],
		'no-console': ['error', { allow: ['info', 'warn', 'error'] }],
		'no-useless-constructor': 'off',
		'@typescript-eslint/adjacent-overload-signatures': ['error'],
		'@typescript-eslint/ban-ts-comment': 'warn',
		'@typescript-eslint/ban-types': [
			'error',
			{
				types: {
					Object: 'Avoid using the `Object` type. Did you mean `object`?',
					Function:
						'Avoid using the `Function` type. Prefer a specific function type, like `() => void`.',
					Boolean: 'Avoid using the `Boolean` type. Did you mean `boolean`?',
					Number: 'Avoid using the `Number` type. Did you mean `number`?',
					String: 'Avoid using the `String` type. Did you mean `string`?',
					Symbol: 'Avoid using the `Symbol` type. Did you mean `symbol`?',
					object: false,
					'{}': false,
				},
			},
		],
		'@typescript-eslint/consistent-type-assertions': 'error',
		'@typescript-eslint/no-empty-function': [
			'error',
			{ allow: ['arrowFunctions'] },
		],
		'@typescript-eslint/no-explicit-any': ['error', { ignoreRestArgs: true }],
		'@typescript-eslint/no-use-before-define': [
			'error',
			{
				functions: false,
				typedefs: false,
			},
		],
		'@typescript-eslint/no-useless-constructor': 'error',

		// note you must disable the base rule as it can report incorrect errors
		'no-unused-vars': 'off',
		'@typescript-eslint/no-unused-vars': [
			'error',
			{ varsIgnorePattern: '^_', argsIgnorePattern: '^_' },
		],

		// STYLE RULES
		'brace-style': 'error',
		curly: ['error'],
		'eol-last': ['error', 'always'],
		'import/order': [
			'error',
			{
				groups: [
					'index',
					'sibling',
					'parent',
					'internal',
					'external',
					'builtin',
				],
				alphabetize: { order: 'asc' },
			},
		],
		'no-mixed-spaces-and-tabs': ['error', 'smart-tabs'],
		'no-multi-spaces': [
			'error',
			{ exceptions: { VariableDeclarator: true, AssignmentExpression: true } },
		],
		'no-multiple-empty-lines': ['error', { max: 1 }],
		quotes: ['error', 'single', { avoidEscape: true }],
		semi: 'off',
		'@typescript-eslint/semi': ['error', 'always'],
	},
};