What are immutable objects and why are they important in programming?

What are immutable objects and why are they important in programming?

Immutable objects are objects whose state cannot be modified after they are created. They are important because they help prevent unintended side effects, making code easier to understand and maintain.

Can you give me an example of an immutable object?

Sure! In JavaScript, strings are immutable. When you manipulate a string, a new string is created instead of changing the original.

What are the benefits of using immutable objects?

The benefits include easier debugging, improved performance in concurrent programming, and enhanced predictability of code behavior.

Are there any downsides to using immutable objects?

Yes, one downside is that they can lead to increased memory usage since new objects are created instead of modifying existing ones.

How do immutable objects affect functional programming?

In functional programming, immutable objects are fundamental as they allow functions to avoid side effects, leading to more predictable and reliable code.