How do I use Object.assign to merge objects in JavaScript?

How do I use Object.assign to merge objects in JavaScript?

You can use Object.assign() to merge two or more objects. It takes a target object as the first argument and one or more source objects as subsequent arguments.

Can you show me an example of how to use it?

Sure! Here's a simple example:

const obj1 = { a: 1, b: 2 };
const obj2 = { b: 3, c: 4 };
const merged = Object.assign({}, obj1, obj2);
console.log(merged); // { a: 1, b: 3, c: 4 }

This merges obj1 and obj2 into a new object.

What happens if there are properties with the same name?

If there are properties with the same name, the values from the later objects will overwrite those from the earlier ones. In the example, b from obj2 overwrites b from obj1.