.eslintrc.json

{
  "root": true,
  "overrides": [
    {
      "files": ["*.js"],
      "parserOptions": {
        "ecmaVersion": 2018
      }
    },
    {
      "files": ["*.ts"],
      "parserOptions": {
        "project": ["tsconfig.*?.json"],
        "createDefaultProgram": true
      },
      "extends": [
        "plugin:@angular-eslint/recommended",
        "plugin:@typescript-eslint/recommended",
        "prettier"
      ],
      "rules": {
        "@angular-eslint/component-class-suffix": 1,
        "@angular-eslint/directive-selector": [
          "error",
          { "type": "attribute", "prefix": "app", "style": "camelCase" }
        ],
        "@angular-eslint/component-selector": [
          "error",
          { "type": "element", "prefix": "app", "style": "kebab-case" }
        ],
        "prefer-const": 1
      }
    },
    {
      "files": ["*.html"],
      "extends": ["plugin:@angular-eslint/template/recommended"]
    },
    {
      "files": ["*.component.ts"],
      "extends": ["plugin:@angular-eslint/template/process-inline-templates"]
    }
  ]
}