What is going on?

main.cs

var n = "1";
object value;

var hasDecimal = n.IndexOf('.') >= 0;
value = hasDecimal
    ? double.Parse(n)
    : int.Parse(n);

System.Console.WriteLine($"{value} is {value.GetType().Name}");

if (hasDecimal)
{
    value = double.Parse(n);
}
else
{
    value = int.Parse(n);
}

System.Console.WriteLine($"{value} is {value.GetType().Name}");