Object from pairs
JavaScript, Object, Array · Oct 21, 2020

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}