30-seconds-of-code/javascript/snippets/object-from-pairs.md

title, type, tags, cover, dateModified

title	type	tags	cover	dateModified
Object from pairs	snippet	object array	silver-flat-screen	2020-10-21T21:54:53+03:00

Creates an object from the given key-value pairs.

• Use Array.prototype.reduce() to create and combine key-value pairs.
• Object.fromEntries() provides similar functionality.

const objectFromPairs = arr =>
  arr.reduce((a, [key, val]) => ((a[key] = val), a), {});

objectFromPairs([['a', 1], ['b', 2]]); // {a: 1, b: 2}