tslint.json

{
  "extends": "tslint:recommended",
  "rulesDirectory": [
    "codelyzer",
    "rxjs-tslint"
  ],
  "defaultSeverity": "warning",
  "rules": {
    /* --------- BEGIN CUSTOM RULES --------- */

    // ----- FUNCTIONALITY
    // Enforces braces for if/for/do/while statements.
    "curly": [
      true,
      "ignore-same-line"
    ],

    // Requires a for ... in statement to be filtered with an if statement.
    "forin": true,

    // Requires === and !== in place of === and !=.
    "triple-equals": true,

    // Disallows unused expression statements.
    "no-unused-expression": [
      true,
      "allow-fast-null-checks"
    ],

    // Disallows debugger statements.
    "no-debugger": true,

    // Disallows eval function invocations.
    "no-eval": true,

    // ----- STYLE
    // Requires the specified tokens to be on the same line as the expression preceding them.
    "one-line": [
      true,
      "check-open-brace",
      "check-catch",
      "check-finally",
      "check-else",
      "check-whitespace"
    ],

    // Checks variable names for various errors.
    "variable-name": [
      true,
      "allow-leading-underscore"
    ],

    // Enforces PascalCased class and interface names. (MUST)
    "class-name": true,

    // Requires interface names to begin with a capital ‘I’ (SHOULD)
    "interface-name": true,

    // Enforces whitespace style conventions.
    "whitespace": [
      true,
      "check-branch",
      "check-decl",
      "check-operator",
      "check-separator",
      "check-type"
    ],
    // Disallow irregular whitespace within a file, including strings and comments.
    "no-irregular-whitespace": true,

    // Disallows trailing whitespace at the end of a line.
    "no-trailing-whitespace": true,

    // Require or disallow a space before function parenthesis.
    "space-before-function-paren": false,

    // Requires single or double quotes for string literals.
    "quotemark": [
      true,
      "single",
      "avoid-escape"
    ],

    // Requires that import statements be alphabetized and grouped.
    "ordered-imports": [
      true,
      {
        "import-sources-order": "lowercase-last",
        "named-imports-order": "lowercase-last"
      }
    ],


    // ----- MAINTENABILITY
    // Requires or disallows trailing commas in array and object literals, destructuring assignments, function typings, named imports and exports and function parameters.
    "trailing-comma": true,

    // Enforces indentation with tabs or spaces
    "indent": {
      "options": ["spaces", 2]
    },

    // Ensures the file ends with a newline.
    "eofline": true,

    // Requires lines to be under a certain max length.
    "max-line-length": [
      true,
      {
        "limit": 140,
        "ignore-pattern": "^import"
      }
    ],

    // Requires files to remain under a certain number of lines
    "max-file-line-count": [
      true,
      300
    ],

    // A file may not contain more than the specified number of classes
    "max-classes-per-file": [
      true,
      12
    ],

    // Enforces a threshold of cyclomatic complexity.
    "cyclomatic-complexity": [
      true,
      9
    ],

    /* --------- END CUSTOM RULES ---------- */
    "no-string-throw": false,
    "arrow-return-shorthand": true,
    "callable-types": true,
    "comment-format": [true, "check-space"],
    "deprecation": true,
    "import-blacklist": [
      true,
      "rxjs/Rx",
      "ramda/es"
    ],
    "import-spacing": true,
    "interface-over-type-literal": true,
    "label-position": true,
    "member-access": false,
    "member-ordering": [
      true,
      {
        "order": [
          "static-field",
          "instance-field",
          "static-method",
          "instance-method"
        ]
      }
    ],
    "no-arg": true,
    "no-bitwise": true,
    "no-console": [
      true,
      "log",
      "debug",
      "info",
      "time",
      "timeEnd",
      "trace"
    ],
    "no-construct": true,
    "no-duplicate-super": true,
    "no-empty": false,
    "no-empty-interface": true,
    "no-misused-new": true,
    "no-non-null-assertion": true,
    "no-redundant-jsdoc": true,
    "no-shadowed-variable": true,
    "no-string-literal": false,
    "no-string-throw": true,
    "no-switch-case-fall-through": true,
    "no-unnecessary-initializer": true,
    "no-use-before-declare": false,
    "no-var-keyword": true,
    "object-literal-sort-keys": false,
    "prefer-const": true,
    "radix": true,
    "semicolon": [
      true,
      "always"
    ],
    "typedef-whitespace": [
      true,
      {
        "call-signature": "nospace",
        "index-signature": "nospace",
        "parameter": "nospace",
        "property-declaration": "nospace",
        "variable-declaration": "nospace"
      }
    ],
    "unified-signatures": true,
    "no-output-on-prefix": false,
    "no-inputs-metadata-property": true,
    "no-outputs-metadata-property": true,
    "no-host-metadata-property": true,
    "no-input-rename": true,
    "no-output-rename": true,
    "use-lifecycle-interface": true,
    "use-pipe-transform-interface": true,
    "component-class-suffix": false,
    "directive-class-suffix": true,
    "object-literal-key-quotes": [false, "as-needed"]
  }
}