public static Menu CollectNumbers(string operationName, Action <double[]> callback)
{
var utility = new NumberCollectionUtility(callback);
return(new Menu(null, new[] { new MenuItem()
{
Text = $"How manu numbers would you like to {operationName ?? "use"}?", Execute = utility.SelectNumberCount
} }));
}
private Menu ChooseNumbers(string operationName, Func <double[], double> method)
{
return(NumberCollectionUtility.CollectNumbers(operationName, (numbers) => {
Write($"Result: { method(numbers) }");
}));
}