When should I use reduce in JavaScript?

When should I use the reduce method in JavaScript?

You should use the reduce method when you want to transform an array into a single value, like summing numbers or concatenating strings.

Can you give me an example of using reduce?

Sure! For instance, to sum an array of numbers, you can use: const sum = numbers.reduce((acc, curr) => acc + curr, 0);.

What are some common use cases for reduce?

Common use cases include summing values, flattening arrays, counting occurrences, and transforming data structures.

Are there any performance considerations with reduce?

Yes, while reduce is powerful, it can be less performant than loops for large datasets due to function call overhead.