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@pajaro5
Created June 26, 2019 03:01
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Ejemplo de función recursiva que suma los pares entre 1 y 9
<!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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