.eslintrc.js

module.exports = {
    env: {
        browser: true,
        es6: true,
        node: true,
        mocha: true,
    },
    extends: [
        'eslint:recommended',
        'plugin:import/errors',
        'plugin:import/warnings',
        'plugin:import/typescript',
    ],
    parser: '@typescript-eslint/parser',
    parserOptions: {
        sourceType: 'module',
        ecmaVersion: 8,
    },
    plugins: ['@typescript-eslint'],
    rules: {
        '@typescript-eslint/no-unused-vars': ['error'],
        'import/first': ['error'],
        'import/no-commonjs': ['error'],
        'import/order': [
            'error',
            {
                groups: [
                    ['internal', 'external', 'builtin'],
                    ['index', 'sibling', 'parent'],
                ],
                'newlines-between': 'always',
            },
        ],
        'linebreak-style': ['error', 'unix'],
        'no-console': [0],
        'no-trailing-spaces': ['error'],
        'no-undef': 'off',
        'no-unused-vars': 'off',
        quotes: [
            'error',
            'single',
            { avoidEscape: true, allowTemplateLiterals: true },
        ],
        'require-await': ['error'],
        semi: ['error', 'always'],
    },
};