Convert Map to JavaScript object

June 9, 2023 by Tarik

Given in MDN, fromEntries() is available since Node v12:

const map1 = new Map([
  ['foo', 'bar'],
  ['baz', 42]
]);

const obj = Object.fromEntries(map1);
// { foo: 'bar', baz: 42 }

For converting object back to map:

const map2 = new Map(Object.entries(obj));
// Map(2) { 'foo' => 'bar', 'baz' => 42 }