What is the purpose of Object.assign in JavaScript?

What is the purpose of Object.assign in JavaScript?

Object.assign is used to copy the values of all enumerable properties from one or more source objects to a target object.

Can you give me an example of how to use Object.assign?

Sure! Here's a simple example:

const target = { a: 1 }; 
const source = { b: 2, c: 3 }; 
const returnedTarget = Object.assign(target, source);
console.log(target); // { a: 1, b: 2, c: 3 }

Does Object.assign perform a deep copy?

No, Object.assign performs a shallow copy. If the source object has nested objects, only the references are copied.

What happens if I use Object.assign with multiple source objects?

When using multiple source objects, Object.assign will copy properties from each source object to the target object, overwriting properties with the same key.