Object.keys, values, entries

Question 1

– returns an array of keys in an object

Answer 1

Object.keys(obj)

Question 2

– returns an array of values in an object

Answer 2

Object.values(obj)

Question 3

returns an array of [key, value] pairs in an object

Answer 3

Object.entries(obj) –

Question 4

Just like a for..in loop, these methods ignore properties that use __________as keys

Answer 4

Symbol(…)

Question 5

The _______________ static method transforms a list of key-value pairs into an object.

Answer 5

Object.fromEntries()

Question 6

const entries = new Map([
[‘foo’, ‘bar’],
[‘baz’, 42]
]);

const obj = Object.fromEntries(entries);

console.log(obj);
// returns?

Answer 6

Expected output:

Object { foo: “bar”, baz: 42 }

Question 7

const entries = new Map([
[‘foo’, ‘bar’],
[‘baz’, 42]
]);

const obj = /* write code here */

console.log(obj);
// Expected output: Object { foo: “bar”, baz: 42 }

Answer 7

Object.fromEntries(entries);