.eslintrc.json

{
  "root": true,
  "plugins": [
    "@typescript-eslint",
    "@angular-eslint/eslint-plugin",
    "eslint-plugin-import",
    "eslint-plugin-jsdoc",
    "eslint-plugin-deprecation",
    "unused-imports",
    "eslint-plugin-lodash",
    "eslint-plugin-jsonc"
  ],
  "overrides": [
    {
      "files": [
        "*.ts"
      ],
      "parserOptions": {
        "project": [
          "./tsconfig.json",
          "./cypress/tsconfig.json"
        ],
        "createDefaultProgram": true
      },
      "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/recommended-requiring-type-checking",
        "plugin:@angular-eslint/recommended",
        "plugin:@angular-eslint/template/process-inline-templates"
      ],
      "rules": {
        "max-classes-per-file": [
          "error",
          1
        ],
        "comma-dangle": [
          "off",
          "always-multiline"
        ],
        "eol-last": [
          "error",
          "always"
        ],
        "no-console": [
          "error",
          {
            "allow": [
              "log",
              "warn",
              "dir",
              "timeLog",
              "assert",
              "clear",
              "count",
              "countReset",
              "group",
              "groupEnd",
              "table",
              "debug",
              "info",
              "dirxml",
              "error",
              "groupCollapsed",
              "Console",
              "profile",
              "profileEnd",
              "timeStamp",
              "context"
            ]
          }
        ],
        "curly": "error",
        "brace-style": [
          "error",
          "1tbs",
          {
            "allowSingleLine": true
          }
        ],
        "eqeqeq": [
          "error",
          "always",
          {
            "null": "ignore"
          }
        ],
        "radix": "error",
        "guard-for-in": "error",
        "no-bitwise": "error",
        "no-restricted-imports": "error",
        "no-caller": "error",
        "no-debugger": "error",
        "no-redeclare": "error",
        "no-eval": "error",
        "no-fallthrough": "error",
        "no-trailing-spaces": "error",
        "space-infix-ops": "error",
        "keyword-spacing": "error",
        "no-var": "error",
        "no-unused-expressions": [
          "error",
          {
            "allowTernary": true
          }
        ],
        "prefer-const": "off",            // todo: re-enable & fix errors (more strict than it used to be in TSLint)
        "prefer-spread": "off",
        "no-underscore-dangle": "off",

        // todo: disabled rules from eslint:recommended, consider re-enabling & fixing
        "no-prototype-builtins": "off",
        "no-useless-escape": "off",
        "no-case-declarations": "off",
        "no-extra-boolean-cast": "off",

        "@angular-eslint/directive-selector": [
          "error",
          {
            "type": "attribute",
            "prefix": "ds",
            "style": "camelCase"
          }
        ],
        "@angular-eslint/component-selector": [
          "error",
          {
            "type": "element",
            "prefix": "ds",
            "style": "kebab-case"
          }
        ],
        "@angular-eslint/pipe-prefix": [
          "error",
          {
            "prefixes": [
              "ds"
            ]
          }
        ],
        "@angular-eslint/no-attribute-decorator": "error",
        "@angular-eslint/no-forward-ref": "error",
        "@angular-eslint/no-output-native": "warn",
        "@angular-eslint/no-output-on-prefix": "warn",
        "@angular-eslint/no-conflicting-lifecycle": "warn",

        "@typescript-eslint/no-inferrable-types":[
          "error",
          {
            "ignoreParameters": true
          }
        ],
        "@typescript-eslint/quotes": [
          "error",
          "single",
          {
            "avoidEscape": true,
            "allowTemplateLiterals": true
          }
        ],
        "@typescript-eslint/semi": "error",
        "@typescript-eslint/no-shadow": "error",
        "@typescript-eslint/dot-notation": "error",
        "@typescript-eslint/consistent-type-definitions": "error",
        "@typescript-eslint/prefer-function-type": "error",
        "@typescript-eslint/naming-convention": [
          "error",
          {
            "selector": "property",
            "format": null
          }
        ],
        "@typescript-eslint/member-ordering": [
          "error",
          {
            "default": [
              "static-field",
              "instance-field",
              "static-method",
              "instance-method"
            ]
          }
        ],
        "@typescript-eslint/type-annotation-spacing": "error",
        "@typescript-eslint/unified-signatures": "error",
        "@typescript-eslint/ban-types": "warn",  // todo: deal with {} type issues & re-enable
        "@typescript-eslint/no-floating-promises": "warn",
        "@typescript-eslint/no-misused-promises": "warn",
        "@typescript-eslint/restrict-plus-operands": "warn",
        "@typescript-eslint/unbound-method": "off",
        "@typescript-eslint/ban-ts-comment": "off",
        "@typescript-eslint/no-var-requires": "off",
        "@typescript-eslint/no-unused-vars": "off",
        "@typescript-eslint/no-unnecessary-type-assertion": "off",
        "@typescript-eslint/no-explicit-any": "off",
        "@typescript-eslint/no-unsafe-assignment": "off",
        "@typescript-eslint/no-unsafe-member-access": "off",
        "@typescript-eslint/no-unsafe-call": "off",
        "@typescript-eslint/no-unsafe-argument": "off",
        "@typescript-eslint/no-unsafe-return": "off",
        "@typescript-eslint/restrict-template-expressions": "off",
        "@typescript-eslint/require-await": "off",

        "deprecation/deprecation": "warn",

        "import/order": "off",
        "import/no-deprecated": "warn",
        "import/no-namespace": "error",
        "unused-imports/no-unused-imports": "error",
        "lodash/import-scope": [
          "error",
          "method"
        ]
      }
    },
    {
      "files": [
        "*.html"
      ],
      "extends": [
        "plugin:@angular-eslint/template/recommended"
      ],
      "rules": {
        // todo: re-enable & fix errors
        "@angular-eslint/template/no-negated-async": "off",
        "@angular-eslint/template/eqeqeq": "off"
      }
    },
    {
      "files": [
        "*.json5"
      ],
      "extends": [
        "plugin:jsonc/recommended-with-json5"
      ],
      "rules": {
        // The ESLint core no-irregular-whitespace rule doesn't work well in JSON
        // See: https://ota-meshi.github.io/eslint-plugin-jsonc/rules/no-irregular-whitespace.html
        "no-irregular-whitespace": "off",
        "jsonc/no-irregular-whitespace": "error",
        "no-trailing-spaces": "error",
        "jsonc/comma-dangle": [
          "error",
          "always-multiline"
        ],
        "jsonc/indent": [
          "error",
          2
        ],
        "jsonc/key-spacing": [
          "error",
          {
            "beforeColon": false,
            "afterColon": true,
            "mode": "strict"
          }
        ],
        "jsonc/no-dupe-keys": "off",
        "jsonc/quotes": [
          "error",
          "double",
          {
            "avoidEscape": false
          }
        ]
      }
    }
  ]
}