tslint.json

{
  /*
   * Possible values:
   * - the name of a built-in config
   * - the name of an NPM module which has a "main" file that exports a config object
   * - a relative path to a JSON file
   */
  "extends": "tslint:recommended",
  "rules": {
    /*
     * Any rules specified here will override those from the base config we are extending.
     */
     "array-type": [true, "generic"],
     "arrow-parens": false,
     "max-classes-per-file": false, // allow private classes
     "one-line": [ true, "check-open-brace", "check-whitespace"],
     "trailing-comma": false,
     "variable-name": [true, "ban-keywords", "check-format", "allow-leading-underscore"]
  },
  "jsRules": {
    /*
     * Any rules specified here will override those from the base config we are extending.
     */
  },
  "rulesDirectory": [
    /*
     * A list of relative or absolute paths to directories that contain custom rules.
     * See the Custom Rules documentation below for more details.
     */
  ]
}