|
| 1 | +class Program |
| 2 | +{ |
| 3 | + static void Main(string[] args) |
| 4 | + { |
| 5 | + /* |
| 6 | + * Una función de orden superior o HOF por sus siglas |
| 7 | + * en inglés es una función la cual recibe en sus |
| 8 | + * argumentos una o más funciones o regresa una función |
| 9 | + * o ambos |
| 10 | + */ |
| 11 | + Console.WriteLine($"{Operation(3, 6, Addition)}"); |
| 12 | + Console.WriteLine($"{Operation(3, 6, Substraction)}"); |
| 13 | + Console.WriteLine($"{Operation(3, 6, Multiplication)}"); |
| 14 | + |
| 15 | + // Ejercicio Extra |
| 16 | + Console.ReadLine(); |
| 17 | + Console.Clear(); |
| 18 | + var students = new List<Student> |
| 19 | + { |
| 20 | + new Student |
| 21 | + { |
| 22 | + Name ="Emilio Quezada", |
| 23 | + Birthdate = new DateTime(1997, 07, 28), |
| 24 | + Grades= new List<decimal>{8.5m, 9.8m, 8.3m, 8.5m } |
| 25 | + }, |
| 26 | + new Student |
| 27 | + { |
| 28 | + Name ="Aldo Díaz", |
| 29 | + Birthdate = new DateTime(1998, 10, 5), |
| 30 | + Grades= new List<decimal>{9.5m, 9.9m, 8.3m, 8.9m } |
| 31 | + }, |
| 32 | + new Student |
| 33 | + { |
| 34 | + Name ="Samantha Ortega", |
| 35 | + Birthdate = new DateTime(1997, 03, 30), |
| 36 | + Grades= new List<decimal>{8.6m, 9, 9.5m, 8.5m } |
| 37 | + }, |
| 38 | + }; |
| 39 | + /* |
| 40 | + * En .Net LINQ utiiliza funciones de orden superarior en las cuales reciben dentro |
| 41 | + * de sus parámetros una expresión lambda |
| 42 | + */ |
| 43 | + var averageList = students.Select(s => new { Name = s.Name, Average = Average(s.Grades) }); |
| 44 | + Console.WriteLine("---Promedios estudiantes---"); |
| 45 | + foreach (var student in averageList ) |
| 46 | + Console.WriteLine($"Nombre: {student.Name}, Promerdio: {student.Average}"); |
| 47 | + |
| 48 | + Console.WriteLine("---Cuadro de honor---"); |
| 49 | + var bestStudents = students.Where(s => Average(s.Grades) >= 9).Select(s => new { Name = s.Name, Average = Average(s.Grades)}); |
| 50 | + foreach (var student in bestStudents) |
| 51 | + Console.WriteLine($"Nombre: {student.Name}, Promedio: {student.Average}"); |
| 52 | + |
| 53 | + Console.WriteLine("---Estudiante ordenados por edad---"); |
| 54 | + var orderedStudents = students.OrderBy(s => s.Birthdate); |
| 55 | + foreach (var student in orderedStudents) |
| 56 | + Console.WriteLine($"Nombre: {student.Name}, Fecha de Nacimiento: {student.Birthdate.ToShortDateString()}"); |
| 57 | + |
| 58 | + Console.WriteLine("---Estudiate con calificación más alta---"); |
| 59 | + var highestGrade = students.OrderByDescending(s => Max(s.Grades)).Select(s => new { Name = s.Name, Grade = Max(s.Grades) }).First(); |
| 60 | + Console.WriteLine($"Nombre: {highestGrade.Name}, Calificación: {highestGrade.Grade}"); |
| 61 | + |
| 62 | + } |
| 63 | + static int Addition(int x, int y) => x + y; |
| 64 | + static int Substraction(int x, int y) => x - y; |
| 65 | + static int Multiplication(int x, int y) => x * y; |
| 66 | + /* |
| 67 | + * La función Operation recibe en sus argumentos |
| 68 | + * dos datos de tipo entero y una funcion(Func) |
| 69 | + * la cual recibe dos datos de tipo entero y |
| 70 | + * devuelve un tipo entero. |
| 71 | + * Así mismo la función Operation devuelve una |
| 72 | + * función. |
| 73 | + */ |
| 74 | + static int Operation(int x, int y, Func<int, int, int> fn) => fn(x, y); |
| 75 | + static decimal Average(List<decimal> grades) => grades.Sum() / grades.Count; |
| 76 | + static decimal Max(List<decimal> grades) => grades.Max(g => g); |
| 77 | + |
| 78 | + |
| 79 | +} |
| 80 | +class Student |
| 81 | +{ |
| 82 | + public string Name { get; set; } |
| 83 | + public DateTime Birthdate { get; set; } |
| 84 | + public List<decimal> Grades { get; set; } |
| 85 | +} |
0 commit comments