In Asp.Net core MVC [aspnetboilerplate.com], I want to print list of number for chart values, Create values in string like this:

        var chartData_1 = "[";
        foreach (var item in daies)
        {
            chartData_1 += _billRepository.GetAll().Where(o => o.UserId == AbpSession.UserId.Value && o.CreationTime.Date == item.Date).Sum(o => o.Amount) + ", ";
        }
        chartData_1 = chartData_1.Trim().Remove(chartData_1.Length - 2) + "]";
        profileViewModel.ChartData_1 = chartData_1;

in view file, Print this value like this

data:@Html.Raw(Model.ChartData_1)

but added unwanted character on before minus, and throw exception on page []

Uncaught SyntaxError: illegal character U+200E