What are some examples of using reduce in JavaScript?

Can you explain how the reduce method works in JavaScript?

Sure! The reduce method executes a reducer function on each element of the array, resulting in a single output value.

Can you give me an example of using reduce to sum an array of numbers?

Absolutely! Here's a simple example: const sum = numbers.reduce((acc, curr) => acc + curr, 0); This sums all the numbers in the array.

What about using reduce to flatten an array of arrays?

You can do that like this: const flattened = nestedArray.reduce((acc, curr) => acc.concat(curr), []); This combines all sub-arrays into one.

Are there any other interesting use cases for reduce?

Yes! You can use reduce for counting occurrences, grouping items, or even transforming data structures.