Get JavaScript Map values as array?

Question

Is there like a quick way to get Javascript Map values as an array?

const map:Map<number, string> = new Map()
map.set(1, '1')
map.set(2, '2')

And then something like Array.from(map.values()) would give ['1','2'] ... I could have sworn that I've something like this...?

What you suggested in your question works as well: Array.from(map.values()) — Paul
– Paul, Commented Aug 16, 2020 at 21:26
@Ole map.values() is an iterator. [...someIterator] is an array. — Paul
– Paul, Commented Aug 16, 2020 at 21:27

Nina Scholz · Accepted Answer · 2020-08-16 21:27:32Z

28

It is working fine. Array.from can take an iterable value as well.

const map = new Map;

map.set(1, '1');
map.set(2, '2');

console.log(Array.from(map.values()));

answered Aug 16, 2020 at 21:27

Nina Scholz

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Comments

Penny Liu · Accepted Answer · 2021-08-31 10:24:29Z

11

Another alternative could be using Spread syntax (...).

const map = new Map().set(4, '4').set(2, '2');
console.log([...map.values()]);

answered Aug 31, 2021 at 10:24

Penny Liu

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