iteracion.js

iteracion.js

const items = {
  "item_1": 1,
  "item_2": 2,
  "item_3": 3,
  "item_4": 4,
  "item_5": 5,
  "nombre": "cristian",
  "apellido": "vasquez"
};

console.log("xxxxxxxxxxxxxxx Iteracion each xxxxxxxxx ")
for (i in items) {
  console.log("Key: [" + i + "], valor: " + items[i]);
}

console.log("xxxxxxxxxxxxxxx Iteracion por los keys xxxxxxxxx ")
const keys = Object.keys(items);
let x = keys.length;

for(i = 0; i<x; i++) {
  console.log("Key: [" + keys[i] + "], valor: " + items[keys[i]]);
}

console.log("xxxxxxxxxxxxxxx Solo os items xxxxxxxxx ")
for(i=1;  i <= 5; i++) {
  console.log("Key: [item_" + i + "], valor: " + items["item_" + i]);
}