Typescript casting with babel eslint parsing

Question

I am getting some parsing errors after introducing ESLint into an existing Typescript codebase.

I have fixed most of the lint errors but babel-eslint as a parser throws quite a few errors like this:

  23:32  error  Parsing error: Unexpected token, expected ","

  21 |       return state.set(
  22 |         'callsInProgress',
> 23 |         (state.callsInProgress as any).filter(i => i !== action.payload)
     |                                ^
  24 |       );
  25 |     }
  26 |     case actions.API_RESET: {

I assume this is because babel does not understand the typecasting as any.

How do i get this through the parser?

My babel config is as follows:

module.exports = {
  presets: ['@babel/preset-env', '@babel/preset-react', '@babel/preset-typescript'],
  plugins: ['@babel/plugin-proposal-class-properties', '@babel/plugin-transform-runtime', '@babel/plugin-transform-typescript']
};

Answer 1

Having a project that is using babel, eslint and typescript myself.

I recommend you to stop using eslint-babel and use @typescript-eslint instead/

typescript-eslint is a project that has been started by the developers of Tslint (now deprecated). It lint typescript code perfectly.

Here is an example of my eslint installed npm packages:

"@typescript-eslint/eslint-plugin": "^2.34.0",
"@typescript-eslint/parser": "^2.34.0",
"eslint": "^5.16.0",
"eslint-plugin-import": "^2.21.2",
"eslint-plugin-jsx-a11y": "^6.3.0",
"eslint-plugin-node": "^11.1.0",
"eslint-plugin-react": "^7.20.0",

Example of my .eslintrc:

module.exports = {
  root: true,
  parser: '@typescript-eslint/parser',

  plugins: [
    '@typescript-eslint',
    'eslint-plugin-node',
  ],

  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
  ],

  parserOptions: {
    "ecmaVersion": 2020
  },

  rules: {
    "comma-dangle": ["error", {
      "arrays": "always-multiline",
      "objects": "always-multiline",
      "imports": "always-multiline",
      "exports": "always-multiline",
      "functions": "always-multiline",
    }],
  },

  env: {
    es6: true,
    browser: true,
    node: true,
  },

  parserOptions: {
    project: './tsconfig.json',
    tsconfigRootDir: __dirname,
  },

  globals: {
    "global": false,
    "Promise": false,
  },
};

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NOTE: I don't know if eslint-babel could be compatible with @typescript-eslint, maybe it does and you can use both.