How does Map and Reduce work?

Can you explain how the Map and Reduce functions work in programming?

Sure! The Map function transforms data by applying a function to each element, while Reduce aggregates data.

Can you give me an example of how to use Map and Reduce in JavaScript?

Absolutely! For example, you can use Map to double each number in an array: array.map(x => x * 2). Then, use Reduce to sum them: array.reduce((acc, x) => acc + x, 0).

What are some common use cases for Map and Reduce?

Common use cases include data transformation, aggregation, and processing large datasets in parallel.

Are there any performance considerations when using these functions?

Yes, using Map and Reduce can be less efficient for very large datasets due to overhead. It's important to consider alternatives if performance is critical.