How to add to an object keys and values of a Map as properties?

Question

I have this object

const obj = {a: 1}

and this map

const map1 = new Map();

map1.set('b', 2);
map1.set('c', 3);

How can I add keys and values from map1 as obj params/values?

obj = {a: 1, b:2, c:3}

EDIT : just edited the object 'obj'

Answer 1

You can use a good ol' forEach() to add values to your object.

 const obj = { a: 1 }; const map1 = new Map(); map1.set('b', 2); map1.set('c', 3); map1.forEach((value, key) => { obj[key] = value; }); console.log(obj);

Or use Object.fromEntries() in combination with the spread syntax.

 let obj = { a: 1 }; const map1 = new Map(); map1.set('b', 2); map1.set('c', 3); obj = {...obj, ...Object.fromEntries(map1), }; console.log(obj);

Answer 2

Use Object.fromEntries()

 const map1 = new Map(); map1.set('a', 1); map1.set('b', 2); const obj = Object.fromEntries(map1) console.log(obj)

Answer 3

const obj = Object.fromEntries(map1);

you can also check this link

Answer 4

you could use Object.fromEntries method to do such a thing

const obj = Object.fromEntries(map);