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Hola @SilviaLu está pendiente un detalle para poder enviar tu function cipher() {
var frase = prompt('Ingresa una frase'); // ingresando la frase
for (var i = 0; i < frase.length; i++) { // recoriendo la frase y de limitando
while (frase(i) === ' ') { // condicionar para evitar los espacios vacios
frase = prompt('Ingresa una frase sin espacios');// peticion de volver a ingresar la frase
}
}
return frase.toUpperCase();// para que retorne en mayuscula
}
function decipher(texto) { // el descifrasado
var clave = prompt('Ingresa la clave'); // peticion de la clave
var output = ' ';// evitando el ingreso de espacios vacios
clave = parseInt(clave);// mi clave en numeros
for (i = 0; i < clave.length; i++) { // recorriendo y delimitando mi clave
var formula = (texto.charCodeAt(i) 65 + clave) % 26 + 65;// aplicando la formula a mi frase con el codigo ASCII y aplicando el charCodeAt
var string = String.fronCharCode(formula); // aplicando fronCharCode para saber la letra de mi frase
output += string; // la letra que me da
}
return output; // mi retorno de la funcion
}
decipher(cipher()); // el llamado a mi funcion |
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Guía de prueba, aprendiendo a usar el pull request