How do I implement immutable structures in my application?

How do I implement immutable structures in my application?

To implement immutable structures, you can use libraries like Immutable.js or leverage built-in features in languages like Python or JavaScript.

Can you give me an example using JavaScript?

Sure! In JavaScript, you can use the spread operator to create a new object or array without mutating the original. For example:

const original = { a: 1, b: 2 };
const updated = { ...original, b: 3 };
console.log(original); // { a: 1, b: 2 }
console.log(updated); // { a: 1, b: 3 }

What are the benefits of using immutable structures?

Immutable structures help prevent side effects, make debugging easier, and can improve performance in certain scenarios by enabling optimizations.

Are there any downsides to using them?

Yes, the main downside is that they can lead to increased memory usage since new copies of data are created instead of modifying existing ones.