Write a map function for objects
const info = {
ironman: 'arrogant',
spiderman: 'naive',
hulk: 'strong',
}
const result = info.map( (key, value, i) => {
return key + i + value
})
console.log(result)
// will print out ['ironman0arrogant', 'spiderman1naive', 'hulk2strong']