.eslintrc.js

module.exports = {
    root: true,
    parser: '@typescript-eslint/parser',
    env: {
        node: true
    },
    parserOptions: {
        'sourceType': 'module',
    },
    plugins: [
        '@typescript-eslint',
        'header',
    ],
    extends: [
        'eslint:recommended',
        'plugin:@typescript-eslint/eslint-recommended',
        'plugin:@typescript-eslint/recommended',
    ],
    rules: {
        'header/header': [2, './header.js'],
        '@typescript-eslint/no-use-before-define': ['error', { 'functions': false, 'classes': false }],
        '@typescript-eslint/no-unused-vars': [1],
        '@typescript-eslint/explicit-function-return-type': [1, { 'allowExpressions': true }],
        'indent': ['error', 2, { 'SwitchCase': 1 }],
        'quotes': ['error', 'single'],
        'eol-last': ['error'],
        'space-infix-ops': ['error', { 'int32Hint': false }],
        'no-multi-spaces': ['error', { "ignoreEOLComments": true }],
        'keyword-spacing': ['error'],
        "@typescript-eslint/no-namespace": "off"
    },

};