var heroes = [
{name: “Batman”, franchise: “DC”},
{name: “Ironman”, franchise: “Marvel”},
{name: “Thor”, franchise: “Marvel”},
{name: “Superman”, franchise: “DC”}
];
var marvelHeroes = heroes.filter(function(hero) {
return hero.franchise == “Marvel”;
});
// [ {name: “Ironman”, franchise: “Marvel”}, {name: “Thor”, franchise: “Marvel”} ]const person = {
first_name: 'John',
last_name: 'Smith',
id: '0000-0000-0000-0001',
email: 'js-example.example.com',
taxID: '000-111-5555'
}
const displayOnly = ['first_name', 'last_name', 'email']
//Object.fromEntries converts Object.entries back into an object
const results = Object.fromEntries(
//Object.entries creates an array of the key value pairs in the object.
Object.entries(person).filter(entry => {
const property_name = entry[0];
//filter out keys based on the array
if (displayOnly.includes(property_name)) {
return entry
}
})
);
console.log(results)