edqwerty1

 public static class WebApiHelpers
    {
        public static string ToJson(Object model)
        {
            var serializerSettings = new JsonSerializerSettings
            {
                ContractResolver = new CamelCasePropertyNamesContractResolver()
            };
            return JsonConvert.SerializeObject(model, serializerSettings);
        }

edqwerty1

 var ids = @"1,2
 3
 asf
 4  5";
 Regex rx = new Regex(@"(\d+)",
                        RegexOptions.Compiled | RegexOptions.IgnoreCase);
  MatchCollection matches = rx.Matches(ids);

  var listIds = new List<int>();
  foreach (Match match in matches)

edqwerty1

// Old
function handleErrors(response) {
    if (!response.ok) {
        throw Error(response.statusText);
    }
    return response;
}

// GET
fetch(`/myAPI/GetMethod?param=${this.param}`, {