.eslintrc.js

module.exports = {
  env: {
    browser: true,
    commonjs: true,
    es6: true,
    node: true
  },
  parser: "typescript-eslint-parser",
  parserOptions: {
    sourceType: "module"
  },
  rules: {
    "operator-linebreak": ["warn", "after"],
    semi: [
      "warn",
      "never",
      {
        beforeStatementContinuationChars: "never"
      }
    ],

    "no-const-assign": "warn",
    "no-this-before-super": "warn",
    "no-undef": "warn",
    "no-unreachable": "warn",
    "no-unused-vars": "warn",
    "constructor-super": "warn",
    "valid-typeof": "warn",
    "no-console": "warn",
    "object-curly-spacing": ["warn", "always"],
    "array-bracket-spacing": ["warn", "always"],
    "space-in-parens": ["warn", "always"],
    "block-spacing": ["warn", "always"],
    "computed-property-spacing": ["warn", "always"],
    "key-spacing": [
      "warn",
      {
        afterColon: true,
        align: "colon"
      }
    ],
    "space-in-parens": ["warn", "always"],
    "space-infix-ops": ["warn", { int32Hint: false }],
    keyword: {
      before: true,
      after: true
    }
  }
}