eslint.config.js

const globals = require('globals');
const eslint = require('@eslint/js');
const tslint = require('typescript-eslint');
const babelParser = require('@babel/eslint-parser');
const eslintConfigPrettier = require('eslint-config-prettier');

module.exports = tslint.config(
    {
        ignores: [
            'coverage/**',
            '**/*.d.ts',
            'dist/**',
            'src/main/public/**',
            'src/main/types/**',
            'jest.*config.js',
            '**/**.min.js',
            'src/main/views/govuk/**',
        ],
    },
    eslint.configs.recommended,
    eslintConfigPrettier,
    {
        files: ['**/**.ts', '**/**.tsx'],
        plugins: {
            '@typescript-eslint': tslint.plugin,
        },
        extends: [...tslint.configs.recommended],
        languageOptions: {
            ecmaVersion: 2018,
            sourceType: 'module',
            globals: {
                Atomics: 'readonly',
                SharedArrayBuffer: 'readonly',
                ...globals.node,
                ...globals.jest,
                ...globals.browser,
                Feature: 'readonly',
                Scenario: 'readonly',
                locate: 'readonly',
                actor: 'readonly',
                DataTable: 'readonly',
                Data: 'readonly',
                CodeceptJS: 'readonly',
            },
            parser: tslint.parser,
            parserOptions: {
                project: true,
            },
        },
        rules: {
            'no-unused-vars': 'off',
            '@typescript-eslint/ban-ts-comment': ['error', { 'ts-ignore': 'allow-with-description' }],
            'linebreak-style': ['error', 'unix'],
            '@typescript-eslint/no-var-requires': 0,
            '@typescript-eslint/no-explicit-any': 0,
            '@typescript-eslint/no-unused-expressions': ['error', { allowTernary: true }],
        },
    },
    {
        files: ['**/**.js', '**/**.jsx'],
        ...tslint.configs.disableTypeChecked,
    },
    {
        files: ['**/*.js', '**/*.jsx'],
        languageOptions: {
            ecmaVersion: 2018,
            sourceType: 'module',
            globals: {
                Atomics: 'readonly',
                SharedArrayBuffer: 'readonly',
                ...globals.node,
                ...globals.jest,
                ...globals.browser,
                ...globals.commonjs,
            },
            parser: babelParser,
        },
        rules: {
            'linebreak-style': ['error', 'unix'],
            semi: ['error', 'always'],
            'no-multiple-empty-lines': ['error', { max: 1 }],
        },
    },
    {
        files: ['**/*.test.ts'],
        rules: {
            '@typescript-eslint/no-unused-expressions': 'off',
        },
    }
);