message: Adding some sensible values to tslint.json
diff: "severity": "warning"
  },
  "no-unused-expression": true,
  - "prefer-const": true
  + "prefer-const": true,
  + "indent": [true, "spaces", 4],
  + "max-file-line-count": [true, 500],
  + "no-duplicate-imports": true,
  + "array-type": [true, "array"]
  }
  }
  