objectFromPairs

Creates an object from the given key-value pairs.

Use Array.prototype.reduce() to create and combine key-value pairs.

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

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