Created
April 5, 2013 01:54
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Clase 4: Arrays
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"use strict"; | |
console.log('app.js'); | |
// Arrays (Arreglos) | |
/* | |
var titulo = "Area51"; | |
console.log( titulo ); | |
console.dir( titulo.split('') ); | |
console.log( titulo.split('') ); | |
var alumnos = "Carlos, Ernesto, Wendy, Javier"; | |
console.log( alumnos ); | |
console.dir( alumnos.split(', ') ); | |
console.log( alumnos.split(', ') ); | |
*/ | |
/* | |
// -- | |
//var personas = new Array(); | |
//var personas = []; | |
var personas = ['Anthony', 'Elder', 'Daniel', 'Aldo']; | |
console.log( personas ); | |
console.log( personas.length ); | |
console.log( personas[0] ); | |
console.log( personas[2] ); | |
*/ | |
/* | |
var camino = "_ __X_O"; | |
var i; | |
var total = camino.length; | |
for(i=0; i<total; i++){ | |
console.log( camino.charAt(i) ); | |
} | |
*/ | |
// Ejercicio | |
// paso1: convertir el texto en array | |
// paso2: obtener el "total" de elementos en el array | |
// paso3: imprimir en consola cada elemento del array | |
var camino = "_ __X_O"; | |
var array_camino = camino.split(''); | |
var i; | |
var total = array_camino.length; | |
for(i=0; i<total; i++){ | |
console.log( array_camino[i] ); | |
} | |
var descripcion = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rem aperiam excepturi tenetur reiciendis veritatis illum consectetur modi tempora vero fugit. Illum iure sint numquam dolore rerum ipsa amet molestias ab.'; | |
// Ejercicio: Cuantas letras "e" existen | |
var total = descripcion.length; | |
var cuenta = 0; | |
var i; | |
for(i=0; i<total; i++){ | |
if( descripcion.charAt(i) == 'e' ){ | |
cuenta++; | |
} | |
} | |
console.log( cuenta ); | |
console.log( descripcion.split('e').length - 1 ); | |
// Ejercicio: Cuantas palabras existes | |
console.log( descripcion.split(' ').length ) | |
// Ejercicio: Cuantas letras "e" y "o" existen | |
var letra_e = descripcion.split('e').length - 1; | |
var letra_o = descripcion.split('o').length - 1; | |
console.log( letra_e + letra_o ); | |
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