Function merge

Merges objects together, the rightmost objects overriding properties of earlier objects.

The return type is the intersection of all properties

const a = { name: `jane`, age: 30 };
const b = { name: `fred`, age: 31, colour: `blue` };
const c = merge(a, b);
// Yields:
// { name: `fred`, age: 31, colour: `blue` } 
Copy

Alternatively, use mergeSameShape if the return shape should be based on the first object.