IntDoubleErrorDart

import 'dart:convert';

void main() {
  print("Hello");
  
  String str = """[{
        "id": "0194b497-6636-772f-9295-ab209b8b6642",
        "productName": "A.O. Smith Frezya 300 S Arıtmalı Su Sebili",
        "brandName": "A.O. Smith",
        "brandId": "0194b496-a212-79ac-9ba2-7e3a0aa67bd0",
        "categoryName": "Su Sebili",
        "categoryId": "018d32aa-0fa4-7292-9881-369b2e409b3a",
        "imageUrl": "https://iksir-files.s3.us-east-1.amazonaws.com/beyaz_esya/su_sebili/0194b497-6636-772f-9295-ab209b8b6642.jpg",
        "reviewCount": 9,
        "overallGivenRating": 5,
        "overallCalculatedRating": 5,
        "featuredSeller": {
            "sellerId": "0194b43d-7682-7ddc-8f16-9544549e5dab",
            "sellerName": "sariyersiemens.com.tr",
            "overallGivenRating": null,
            "reviewCount": 0,
            "lastPrice": 29229,
            "url": "https://www.sariyersiemens.com.tr/urun/a-o-smith-frezya-300s-sebilli-su-aritma-cihazi",
            "shop": "sariyersiemens.com.tr",
            "platform": {
                "id": "018d3819-590f-75cd-8323-42a07b537ab3",
                "name": "trendyol",
                "logoUrl": "https://iksir-files.s3.us-east-1.amazonaws.com/platform_logos/trendyol.svg"
            }
        }
    }]""";
  final List<dynamic> data = json.decode(str);
  List<Map<String, dynamic>> searchResults = List<Map<String, dynamic>>.from(data);
  double? n = searchResults[0]["overallCalculatedRating"];
  print(n);
  print("overallCalculatedRating: ${n ?? 0.0}");
}