Map, Filter, Reduce vs For Loop: Which to Use?

Can you explain the differences between map, filter, reduce, and for loop in JavaScript?

Sure! In JavaScript, map, filter, and reduce are higher-order functions that operate on arrays, while a for loop is a traditional way to iterate over elements.

What are the advantages of using map, filter, and reduce over a for loop?

Using map, filter, and reduce can lead to more concise and readable code. They also promote functional programming principles.

Can you give me an example of each in action?

Absolutely! For map, you can transform an array: arr.map(x => x * 2). For filter, you can select items: arr.filter(x => x > 10). And for reduce, you can accumulate values: arr.reduce((acc, x) => acc + x, 0).

When should I prefer using a for loop instead?

You might prefer a for loop when you need more control over the iteration process, such as breaking out of the loop early or when performance is critical.