First item from a Map on JavaScript ES2015

Question

I have a Map like this:

const m = new Map();
m.set(\'key1\', {})
.
m.set(\'keyN\' {})

the Mapcan have 1 or many i

Answer 1

Also, that is correct for both Set and Map: you can convert anything to Array and then get any element by its index. Something like this:

const m = new Map();
m.set('key1', {});
m.set('key2', {});

console.log(Array.from(m)[0]); // ['key1', {}]