merge two JavaScript objects with priority [duplicate]

Question

I have two JavaScript objects like

let master = {A:0, B:2};
let slave = {B:1, C:1};

I need:

result == {A:0, B:2, C:1};

Does JS have a simple command to merge in that way?

Answer 1

Use Object.assign

The Object.assign() method is used to copy the values of all enumerable own properties from one or more source objects to a target object. It will return the target object.

let master = {A:0, B:2};
let slave = {B:1, C:1};

console.log(Object.assign(slave, master));