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ES6 in 2015 introduced the Spread Operator, which is the perfect way to merge two simple objects into one:

const object1 = {
  name: 'Flavio'

const object2 = {
  age: 35

const object3 = {...object1, ...object2 }

If both objects have a property with the same name, then the second object property overwrites the first.

The best solution in this case is to use Lodash and its merge() method, which will perform a deeper merge, recursively merging object properties and arrays.

See the documentation for it on the Lodash docs.