eslist on save

.eslintrc.js
module.exports = {
  'env': {
    'browser': true,
    'es2021': true,
    'node': true
  },
  'extends': 'eslint:recommended',
  'parserOptions': {
    'ecmaVersion': 12,
    'sourceType': 'module'
  },
  'rules': {
  }
};

.vscode/settings.json

{
  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  },
  "eslint.validate": ["javascript"]
 }