.eslintrc.js

module.exports = {
    parser: '@typescript-eslint/parser',
    plugins: ['@typescript-eslint'],
    parserOptions: {
        ecmaVersion: 9,
        sourceType: 'module',
        project: ['./tsconfig.json', './test/tsconfig.json'],
    },
    extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended', 'prettier'],
    rules: {
        '@typescript-eslint/explicit-function-return-type': 'off',
        '@typescript-eslint/no-explicit-any': 'off',
        '@typescript-eslint/explicit-member-accessibility': 'off',
        '@typescript-eslint/no-use-before-define': 'off',
        // typescript compiler has better unused variable checking.
        '@typescript-eslint/no-unused-vars': 'off',
    },
    overrides: [
        {
            files: ['src/**/*.ts', 'src/**/*.tsx'],
        },
        {
            files: ['test/**/*.ts', 'test/**/*.tsx'],
            rules: {
                '@typescript-eslint/no-non-null-assertion': 'off',
                '@typescript-eslint/no-object-literal-type-assertion': 'off',
            },
        },
    ],
};