CODE EXAMPLE FOR JAVASCRIPT

console.time

const heroes = [
    { name: 'Spiderman', universe: 'Marvel' },
    { name: 'Iron Man', universe: 'Marvel' },
    { name: 'Hulk', universe: 'Marvel' },
    { name: 'Batman', universe: 'DC' },
    { name: 'Superman', universe: 'DC' },
    { name: 'Wonder Woman', universe: 'DC' },
]

const marvel = heroes.filter(h => h.universe === 'Marvel');

console.table(marvel);