How can I convert an immutable object to a mutable one in JavaScript?

How can I convert an immutable object to a mutable one in JavaScript?

In JavaScript, you can convert an immutable object to a mutable one by creating a shallow copy using methods like Object.assign() or the spread operator.

Can you show me an example using the spread operator?

Sure! If you have an immutable object like const obj = { a: 1, b: 2 };, you can create a mutable copy with const mutableObj = { ...obj };.

What if I want to modify a property in the mutable object?

You can simply change the property like this: mutableObj.a = 3;. Now mutableObj is mutable and can be modified.

Are there any performance considerations I should be aware of?

Yes, creating copies can have performance implications, especially with large objects. It's important to consider the size and frequency of these operations.