.eslintrc.js

module.exports = {
  parser: '@typescript-eslint/parser', // Specifies the ESLint parser
  env: {
    browser: true,
    node: true,
    jest: true,
    es6: true,
  },
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended', // Uses the recommended rules from the @typescript-eslint/eslint-plugin
    // 'prettier/@typescript-eslint', // Uses eslint-config-prettier to disable ESLint rules from @typescript-eslint/eslint-plugin that would conflict with prettier
    'plugin:prettier/recommended', // Enables eslint-plugin-prettier and eslint-config-prettier. This will display prettier errors as ESLint errors. Make sure this is always the last configuration in the extends array.
    'plugin:jsdoc/recommended',
    'prettier',
  ],
  parserOptions: {
    ecmaVersion: 2018, // Allows for the parsing of modern ECMAScript features
    sourceType: 'module', // Allows for the use of imports
  },
  rules: {
    '@typescript-eslint/camelcase': 'off',
    '@typescript-eslint/interface-name-prefix': 'off',
    '@typescript-eslint/explicit-function-return-type': 'off',
  },
  // ref: https://github.com/typescript-eslint/typescript-eslint/issues/964#issuecomment-569481854
  overrides: [
    {
      // enable the rule specifically for TypeScript files
      files: ['*.ts', '*.tsx'],
      rules: {
        '@typescript-eslint/explicit-function-return-type': ['warn'],
      },
    },
  ],
  plugins: ['jsdoc', '@typescript-eslint', 'prettier'],
}