Created
June 26, 2019 03:01
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Ejemplo de función recursiva que suma los pares entre 1 y 9
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| <!DOCTYPE html> | |
| <html lang="es"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>Suma Pares</title> | |
| </head> | |
| <body> | |
| </body> | |
| <script> | |
| //1,2,3,4,5,6,7,8,9 | |
| //Encontrar los pares y devolver la suma. | |
| //Pares: 2,4,6,8 | |
| //suma: 20 | |
| //Funcion que determina si un numero es par | |
| var esPar = function(numero) { | |
| if (numero%2 === 0) { | |
| return true; | |
| }else{ | |
| return false; | |
| } | |
| } | |
| var sumaTotal = 0; //acumulador | |
| var maximo = 9; | |
| //repetidor, funcion recursiva. | |
| var solver = function(contador){ | |
| if (contador > maximo) { | |
| return sumaTotal; | |
| } else { | |
| //logica de negocio | |
| if (esPar(contador)) { | |
| sumaTotal += contador; //2+4 | |
| } | |
| return solver(contador+1); | |
| } | |
| } | |
| alert('suma de pares: ' + solver(1)); | |
| </script> | |
| </html> |
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